Spooner, per your original question, here are some of the things you should look for (not necessarily in order):
1) Image quality (megapixels, flash quality, zoom capability etc.)
2) Storage format (Smartmedia or Compact Flash, if you have other portable devices this may matter to you)
3) PC Connection type (serial connections are REALLY slow, look for USB)
4) Ease of use (size of LCD, menus, auto settings etc. - check out reviews for this)
5) Size/Weight/Durability
6) Bundle - does it come with enough memory, any batteries, etc.
7) Bells and whistles (video/sound recording etc.)
I'm sure there's more but that is what I can think of off the top of my head.