I have a Nikon D3000 with the kit lens. I always use the auto setting but hope to take some photography classes one day to learn more about manual settings. When I take pictures, especially indoor pictures, they turn out dark. Do I just need an external flash? I'm not even sure what I should be looking for. Not wanting to spend a ton since I just use it for recreational purposes. Any help would be much appreciated.
I would also love to take more crisp pictures like some I have seen here on the disboards. Is a certain lens needed to achieve this?
http://www.disboards.com/showpost.php?p=43656239&postcount=2199
Your post is a great example to people thinking that getting a "better" camera is automatically going to improve their pictures.
When realistically, what's going to improve your pictures more than anything is learning the basics of photography and camera operation - regardless of whatever camera you have.
This is great news for people who really don't want to jump into the world of large, expensive, complicated gear. Learn principles of photography/exposure and you will improve your pictures significantly with the camera you already have (with some limitations).
I'm not even sure what I should be looking for.
I also think, and I can assure you I've been there myself, that hearing terms like metering, f stops, manual controls, etc., is absolutely confounding

to people who have no clue what any of those mean, as I suspect is the case for the OP. Am I on the right track, Aidensmommy? Hey, there's no shame in not knowing. When you're really new to this, you don't even know what you don't know.
Bottom line: you have a great camera, and are certainly capable of getting shots at least as good as that pizza shot. The key is, you just need to learn how. For some, that means taking a class. For others, it means reading and studying on your own. And for others, it means getting out there and playing around with the camera, learning as you go. For most, it's a combination of these. But there's no substitue for putting the time in.
Not wanting to spend a ton since I just use it for recreational purposes.
I know you meant money, but I'm substituting it with
time.
Can you get decent pictures, on Auto, with kit lenses, with a camera like yours? Sure you can. Will you be really frustrated sometimes? Sure you will. Just about everyone is, even those who
do put the time in. But truly, it's when you put the time in (and for many, when you also add some better lenses) that the magic begins.
Understanding Exposure is a great place to start, as is doing exercises like the ones suggested here. If there is a Dummies book for your camera, that can be really helpful, too. Good luck in your quest for better photos!