Originally Posted by firebane

It really depends on the camera you are using. Myself I'm using a Canon Powershot G3 so the pics are only max res like 2048x?? and a max size of around 3MB for a 4MP shot.

But you get into the high end Digital SLR and you require 1 gig or 2 gig cards just for all the data they store and if you shoot in RAW format as well.