I went digital this past January. Lots of research. Check out:
http://www.steves-digicams.com It is a well-rated independent site. Good camera reviews - very, very detailed, lots of pics and evaluation of features. They also have a list of links to every other site out there:
http://www.steves-digicams.com/digresources.html
I agree that 2mp is reasonable enough for web posting and reprints up to 5x7. 3.3mp let's you do 8x10, but you can dial it down to save space. I like that option.
One important consideration is batteries. These guys eat them, especially when using the LCD to review or frame pics. So a rechargeable is a must. Now here is the rub. Some cameras include them, some don't. There are inexpensive AA recharge kits (again, look at the resource list above to learn more about batteries than you ever wanted to know). Most, if not many of the cameras use a proprietary size/shape rechargeable battery. Often the more expensive models do not - which gives you important flexibility.
For example, I selected the Nikon 880 primarily for the legendary Nikon optics, but also because the Nikon rechargeable battery is the same as a standard 2CR5 camera battery. So if I'm out in the field taking pics, and either run out of juice or forget to recharge, I can drop in a spare regular disposable battery, or walk over to any film counter and buy same.
I also opted for a Lexar brand CF card - mainly because it has a very compact USB reader that allows the card to be treated like a disk drive. This makes grabbing the images off the card very easy. I've never "connected the camera" directly to my PC, which means one less proprietary software package to muck up the works.
Finally, get and learn to use a decent photo editing package (like Paint Shop Pro). Simple adjustments to contrast, color balance and sharpness makes a dramatic difference in image quality. For example, when someone wears a hat, I can slightly digitally enhance the portion of the face under the hat - and you can see their face. Of course, the same technique could be applied to interior shots of your Car
They are certainly a lot of fun and are great for instant gratification. If I were going to get a 2mp for quick snaps, I like the Nikon 775 as well as some of the Olympus models, though I don't like the Smarted memory card in the Olympus. But to each their own.
Have Fun!
Don