You can't go wrong with a Canon Digital SLR Camera:
http://www.canoneos.com/
EOS-1, EOS-1D, EOS-10D, Rebel
For Nikon, check out the:
D70, D2H, D100, D1H, D1X, D1
It all depends on how much you want to spend, anything else (in my opinion) is a waste of money...