I'm interested in this thread as well. We're expecting our first child, and I want to have a dSLR ready to go.... I shot film SLR for years, but have been a point-and-shoot guy out of laziness for the last several years. I do not have lenses for an SLR camera currently, so I'm starting from scratch.
A recent visit to a photo shop had me looking at Canon EOS 20D, Nikon D70, and the new Canon Rebel XT. I will definitely want to be taking these underwater, but that'll probably be a year down the road, so I'm not concerned if a housing hasn't been made yet for the Rebel XT (Canon 350D).
Now, while image quality seems identical between the 20D and Rebel XT from what I've read, the XT is in a smaller, less "rugged" body. I've got average size hands, so the controls didn't seem to bother me as some people have complained of....granted, I've used it all of 10 minutes in the shop so far. Of course, I can't imagine that size & quality of body make up the $500-odd difference between the Rebel XT and 20D.
An interesting comparison, though, seems to be the 20D and the Nikon D70. A substantial cost difference, and they both appear to be excellent cameras. I haven't found a great review comparing these two animals.... Since I'm not coming in with a slew of lenses, I could go either way. I'm also not used to one camera manufacturer's menu system, etc., so I'll get used to whatever I purchase.
Can anyone help with some of my confusion??
Thanks,
Jim