Site for Prints using Nikon DSLR & iPhoto?

[princessbride6205]

Okay, I need help. Every time I upload photos from iPhoto to any photo printing/sharing site the colors all become muted and the contrast decreases. I've tried Snapfish, Shutterfly & Smugmug. We shoot in RAW with a Nikon D70. I have tried dragging photos directly from iPhoto as well as exporting to desktop as jpeg and then uploading. I suspect it is because I have edited the photos to give them a higher contrast & saturation and those get stripped off somehow in the photo site's upload. Any ideas? Am I doomed to bad prints because I edit my photos?
Any suggestions or input would be appreciated!

 

[Furgus]

mpix.com

Awesome place to get prints.

 

[Chikabowa]

Are you working on a color calibrated monitor?

If not, that what you are seeing on your screen is not accurate to what is printing at the print shops.

 

[Chikabowa]

Oh and what the previous poster said... Mpix rocks. (Mpix is the consumer side of one of the best pro-photographer professional labs out there, Miller's. I adore my prints from Millers.)

Shutterfly and Snapfish, in my opinion, have some of the worst color management out there.