I realize the "technical" resolution I "should" have if I was producing "professional" images would be like 2400x3000 or so, at 300dpi. However, I have used about that resolution to print a 20x30 and it has still worked out well (not with a magnifying glass obviously, but well in the sense that customers still buy them and are pleased.) The Problem: After an event where I shoot a ridiculous amount of pictures (night of MMA fights, night of racing, etc) I end up with about 4GB worth of photos to upload to Smugmug, which is unreasonable with DSL. So, if I can knock that down to 1 or 2 GB, and restrict the customers to 8x10's and 20x30's only by request, then that would be a little easier to manage. Didn't people blow up 8x10's when cameras would only do 4 or 5 MP images? So my question is... what can I "get away" with when quantity is more important than a crystal-clear image?