I have seen sites such as ofoto, webshots and others. Who uses these and what seems to be the best and worst features of some?

I have used ofoto. The quality was 110%. I sent in about 30+ photos from my digital, and had a couple blown up into 8x10s. I will definately use them again when I put together more pictures I want printed. Keep watching and they sometimes run like 20% off specials. You wont be disappointed.

Did you use a high res photo or will the prints look good with a low res pic also?

I just tried ofoto this week. Had some pictures printed that my daughter took and emailed me. They were jpg files and around 300k in size. The prints were in in just a few days and the quality was fine. First order was free shipping. I'll probably use them again. Maybe next time I'll get some larger prints made.

I have a Kodak DC3400. I always just keep it on the middle setting, which isnt the best setting, but isnt the worst. Hope that helps.

If I keep it on the highest setting, I cant get many pictures.