Wow! You've got a lot of questions regarding dSLR cameras, and I believe that many of these answers you can probably find in an Intro to Digital Photography book. There are dozens of such books at your local bookstore, so browse through them to read what they say about dSLR cameras.
In the end, I'd agree with the above replies. If you're already satisfied with the photos you're getting with your point-and-shoot camera, then there's really no need to move on to a dSLR camera.
However, if you feel that your point-and-shoot camera is somehow limiting your photography, then
maybe you might be ready for a dSLR camera.
Simply buying a dSLR camera won't automatically make your photos better. You can still
*very easily* take really BAD photos with a dSLR. However, just like with any hobby, if you're willing to take some time to learn the basic principles of photography, then you can really make your photos shine.
That's really the key to getting better photos: knowing the basic principles of photography. It really doesn't matter what camera you have, whether it be a point-and-shoot camera, a super-zoom "bridge" camera, or a dSLR.
The first thing for your shopping cart (and probably the most important) is a book on photography.
Understanding Exposure by Bryan Peterson (
link to
Amazon) is a book that is highly recommended on this message board. This book with walk you through the basics of exposure (ie. aperture, shutter speed, ISO), and when to change what settings in what situations.
Probably another good book to get is any Intro to Digital Photography book, as I mentioned above. Again, just go to your local bookstore, browse through some books, and see which one fits your reading & learning style.
I'll try to tackle a few of your questions.
My question is.. what is the big deal about a DSLR? Why are they so expensive? Are they that much better than my P-N-S? I'm also concerned about all the "extras" that I may need (Lenses, tripods, etc)?
DSLRs have several advantages that point-and-shoot cameras don't have:
- larger image sensors, which gives better image quality, better low-light photography, and less "noise" / grain in your photos
- faster shutter speed and minimal shutter delay - as soon as you press the shutter button, the dSLR camera almost instantaneously takes the photo...unlike the point-and-shoot cameras that have to take an extra second to think about what to do before taking the photo
- more frames-per-second (fps), compared to a point-and-shoot camera - this is especially important for sports photographers. Today's dSLR cameras can shoot from 3.5 fps to 10 fps!
- ability to change lenses is important! Different photo situations may require different, more specialized lenses. Are you taking a photo of a lion far far away? (telephoto lens) Are you taking a photo of a close-up flower? (macro lens) Are you taking a photo of your child in a theater play? (low-light lens) Are you just taking regular vacation photos? (standard "kit" lens)
...and the list can go on and on and on. But these are a few of the important things that folks look for when switching to a dSLR.
Are photos from my dSLR camera better than my point-and-shoot camera? At least for me, once I saw the photos my dSLR camera could take, I vowed to go back to each of my previous vacation spots and re-take vacation photos with my dSLR.
Would I be a good candidate for a DSLR?
If so, what do you guys consider to be a good "introductory" one to buy?
Only you can answer whether you're a good candidate for a dSLR or not. A good introductory dSLR would be the
Canon Rebel T1i. However, Canon just announced the next model for this Rebel series: the Canon Rebel T2i, and this camera should be available in stores very shortly. This means that if you wait a few weeks / months, you can go with the newest model (the T2i) or watch the price of the T1i come down.
There are other entry-level dSLR cameras from Nikon, Sony, Pentax, and Olympus that you should look at, as well. I only shoot Canon cameras, so I'm most familiar with Canon's line of cameras.
Which brand has the "best" camera is really a matter of personal preference. It's like asking whether Coke or Pepsi is better. The differences among the different camera brands are very subtle and probably not significant to a beginning photographer.
However, I do agree that you should go to your local
Best Buy (or better yet, go to your local camera store) and hold each of these cameras yourself to see which one "feels" best to you.
What would be a "top of the line" one currently?
Well, for Canon, the "top of the line" dSLR camera would be the
Canon 1D Mark IV ($4,999). This is the one that professional photographers use to cover sports, news, the war, fashion, etc.
For Nikon, the "top of the line" dSLR would be the Nikon D3s ($5,200) or the Nikon D3x ($7,500).
However, as tempting as it may be to buy the "top of the line" dSLR, I'd still recommend that you first invest $15-20 in a good Intro to Digital Photography book.

Before you buy a sports car, you should first learn how to drive.
For me to take really good pics (fireworks, etc.) would I need to have a backpack with my just for all my different lenses and such???
Good fireworks photos requires a tripod, regardless of whether you're using a dSLR or a point-and-shoot camera. MarkBarbieri, one of the members of this message board, started a thread specifically on how to shoot fireworks:
How To Shoot: Fireworks
I, personally, will carry a medium-sized camera bag around with me at Disney World. However, I try to keep my lenses to a minimum as best I can. Disney World is no fun if I feel like a mule, hauling 50 pounds worth of camera equipment.
Here is another quick one (forgive my ignorance).. Is it possible to still "point and click" with a DSLR or will I lose that ability with "manual focus" and such?
Camera manufacturers have put a LOT of effort into selling dSLR cameras to the general public, and making it EASY for regular folks to take photos with entry-level dSLRs. They're marketing their dSLR cameras to folks who want to buy a dSLR but don't know much about photography. So, this means that entry-level dSLR cameras all have the infamous "Auto" mode.
You can certainly start in "Auto" mode, and your dSLR camera essentially becomes a high-priced point-and-shoot camera. While "Auto" mode is good for general, every-day, day-time photography, "Auto" mode doesn't do so well in less-than-ideal photographic conditions. You may have seen examples of this in your own point-and-shoot camera.
Take the time to learn the basic principles of photography. Venture out of "Auto" mode to make your photos really shine.
Regarding your concerns about "manual focus", I guess I'm not sure what you mean. All dSLR cameras and lenses are autofocus. I think autofocus has actually been around for decades.
You certainly have the option to use manual focus for your photography, and in very very specialized situations, it might be worthwhile to use manual focus (ex. macro photography, very very low-light photography, etc). But for 99.999% of your photography, I'd recommend going with autofocus.
Hope that helps.

Sorry for the long, wordy post.