1. battery - lithium more compact, AA rechargables cheaper
2. Memory - xd more compact, sd cheaper
3. Video - if you like to take short video clips, look for one with
640x480 30fps video, but need to have large memory
4.Pixels - 4M okayalready, 5M better, 6M make sure you have fast
computer
5.optical zoom - more the merrier
happy with olympus, canon & fuji finepix. Nikon mid-range
so-so. The rest dunno - never try before
