Hi there, select a digital camera that has the highest resoluion that you can afford. It also must have a LCD screen on the back so you can see the image after you have taken it,and a flash. Compact flash cards are cheaper than solid state cards, so go for a camera that has a compact flash memeory. Agfa 1280 i a good camera, so is the Olympus 800? around £700 uk.
I hope iv been of help. My hobby is photography so ask as many Qs as you want
I highly recomment the Kodak DC260 I have no complaints and it connects to your USB port for very fast uploads. Too many features to list. The price keeps dropping, $629 last check. Worth every penny. Good luck.