Hi Alex!
I'd be happy to talk more with you about the digital SLRs and let you try mine out! I am really looking forward to having the kids back in school. They start September 6th.
Hi Leslie,
There are lots of small differences between the D50 and D70. There's also the new D70S. The review
here is pretty exhaustive and talks about the changes. There is also a comparison with the Cannon Rebel XT and a Pentax camera, I think, toward the end of the article.
I think the biggest obvious differences between the D70s and the D50 are the D50 has only one control "wheel" in the back, whereas the D70 has a couple. Also the D50 has different automatic scene modes, for instance it has a "child" setting. I love that one. The fastest shutter speed on the D50 is double the D70 at 1/4000th of a second, but since I am more likely to work in low light, I didn't care. The D50 has an improved highlights rendition over both the D70s. Probably the biggest functional difference is that they use different storage cards. The D50 uses an SD card, while the D70 uses a compact flash card.
The best way to find out the things that matter to you would be to check out the link I made for the review. Right up front they put in a really nice chart of the feature comparisons.
If I were you, I might be tempted to have one of each camera, but then you'd have to carry both storage types, etc. Oh, to have such terrible choices to make . . .