Online:
I have tried many some actually crop and center your shots so they aren't "exactly" what you may upload to them, some even have the abilty to shut this feature off. I recommend trying them all and see which meets your needs best, most have some type of free picture or discount offer to get new customers and I would compare them.
A good way to baseline, what you really get would be to send the same photo to several different services and then judge, who processed your picture the best.
A good list of online developers is from
Steve's Digicams:
http://www.steves-digicams.com/digresources.html#photo
Brick&Mortar:
I have have had great success with Costco and their enlargement prices are very reasonable and you can get them in an hour...
If you are looking for High quality development, alot of premium film photo labs and local camera shops also have made the transition from film to digital and support different print papers and developing techniques for real high end photos and professional finishes. This process is a hunt-around process, but your local yellow pages and google (
http://labs.google.com/location?q=digital+photo and enter in your address) is probably the best way to find the closest digital lab near you...
