Manning...
Nice article link you posted. It covers plenty - however I would like to add some emphasis on some aspects.
With a DSLR you get usable ISO speeds from ISO 800-1600 depending on your tolerance for noise. Which makes one aspect of shooting a faster experience. Pocket digicams with the tiny sensors and sensor points can only shoot at ISO 150 or 200 before the image breaks up. DLSRs shooting at 1600 and 3200 are comparable to pocket digcams at ISO 200 or 400 on some of the better ones.
Then with the speed of the autofocusing and fast lens focusing systems - plus the near instant shutter trigger AND the flip of the wrist to zoom and compose - all combine to make for a very fast system for taking a shot compared to most pocket digicams. Add to that the rapid firing follow up shots by virute of the sizable buffers. Now if you are
not interested in taking one or more shots quickly then this should not matter to you. But if you have active kids or grand children, or if you're a sports enthusiast who would like to have a few memorable photos then a DSLR is the only way to go.
Add to that the potential of adding state of the art lenses to a DSLR - then this would be another consideration (with generally extreme cost) - but even middle of the road lenses can be rather good with in most cases with no differences to the AVERAGE naked eye at or below 11x14 print size. Beauty is in the eye of the beholder - with some minimum technical requirements.
Almost any DSLR/lens combination delivers more technical power - and the most expensive DSLR/lens combinations deliver tremendous technical performances. Now - nobody go and jump on my case here by quoting a Kodak DCS420 with a 3rd party, 3rd world knock off lense (body = 12 years old, 1.5 megapixels, originally $8000 ~ body alone!).
NOW - if speed is not an issue - and if shooting near perfect images with a focusing sharpness that is eye POPING is NOT an issue - then a point and shoot will serve admirably. Point and shoots can achieve some great results. I have an old G-1 with a f2.0-3.8 zoom and 3.0 megapixels. I had pretty good results - but with my good ol' 10D and 70-300 IS and a humble 20-35 zoom I get 5-10x the number of perfect images... plus I can shoot under circumstances that otherwise the G1 could never be used.
There is probably no harm in getting a good pocket digicam 1st. By the time you get used to personally processing images at home prior to shipping - and by the time you get up to speed on using your images for slide shows, emailing to frineds and family, and after having gotten your feet wet with the creative flexability at your finger tips with the processing options after taking the shots - a year or three would have passed. And then DSLR will have dropped in price another 20-25% and the power for the money will proably improve another 10-20% in general. SO no harm there in deferring the larger expense until you verify your true needs and desires.
When I was initially exposed to digicams and started - the first things I was struck with were 1) the near zero cost after initial equipment costs; 2) the near zero shooting cost allowed me to shoot at will and in the process get a lot of junk but also a few totally "perfect" shots. 3rd) The flexability in sharing huge albums at near zero cost was an eye opener. I could email a password protected link to a hundred images to a hundred friends and family at zero cost after learning how to do it and set it up. TO have done the same with film and prints would have cost a ton! This leads to keeping in closer touch with more people at a low financial cost - the time involved can be a killer though depending on your production and exhibition standards. ANd 4th) I became sort of re-addicted to the hobby and the costs can mount.
With deference to #4 above - I borrowed a 1.25 mega pixel camera that at the time cost $300. On that first experience with a digital camera I shot 800 keepers out of about 950 images over a 10 day cruise in Tahiti. To have generated 800 photos that were keepers (maybe 100-150 were sweet) on FILM would have probably required I shoot 30-40 rolls of 36 at a cost of about $20 each. That was like having spent $600-800 on FILM photos! I was hooked - so I went out and spent $1,500 on a Canon G-1 the week it came out - and a hot new technology storage gizmo called a 1 Gig IBM microdrive. About 3 years later they came out with the first under $1000 DSLR ~ the Canon Digital Rebel ... so I got one of those for $900 90 days after it was introduced. I was happy as a lamb with the greater power and speed. Then a year later I learned of the power and handling differences from that DSLR compared to the 10D, 20D, and so on. Well... I had since observed my G-1 depreciate from about $850 to about $150 in 4 years. My D-rebel could still fetch $500 without the KIT lense - so I sold it. And since I was sort of annoyed with the rapid erosion in resale AND the total amount I had spent on equipment (at the time near $4000 in total) I decided I needed to side step a generation or two of digicam DSLRs while taking a small step forward. SO having sold the Digital Rebel - bought a used 10D for only $100 more out of pocket. That was not bad considering my rebel was used and the 10D had an original intro price of $2100 when my Rebel had an intro of $1000 and the G-1 debuted at $850. I bought the G-1 at the peak of cost new... and the D-rebel 90 days after intro at 10% off.... and the 10D was bought approximately 26 months after it was introduced at about 70% off it's intro price.
I am extremely happy with the 10D - even though there are 2 models that have replaced it... the 20D and the 30D. Maye when the 40D is introduced in about 18-24 months I will look for a used 30D at half it's inital price of $1500. My 10D may only fetch $200-350 ... and if that were the case I would keep it as a back up body.
I also have a pocket digicam for convenience and backup... it's an SD400. A nice and tiny digicam - that is inferior to the 10D in image quality and speed - but it is one of the ultimate tiny digicams that fit in a pocket like it was not there!
If you get a digicam - try borrowing one to get a feel for what can be done - then take your first step accordingly.
TTFN!
Don't try this hand held in a dimly lit theater (no flash, of course!) with a point and shoot from 25+ yards out!
And these 3 are probably challenging shots with a pocket digicam and the usual shutter lag...
Of course, you can overcome pocket digicam shutter lag by prefocusing with a half press prior to shooting.