If you are printing on Fuji CA Supreme and you want city area, try Triple-D at Burlington Square. If in the east, DigiPro is the place to go. If in the West, nothing beats Grace Digital. These are the best FDI labs I've had in sevice from, even when minor goof-ups occur. All three I've been using since last year. $0.30 per 4R.
If you want, ST_sg, you may PM me, I'll give you a direct recommendation to one of them.