I use a local photography shop or mpix. Mpix is reliable - the quality is really very good. Definitely as good as my local company.
Skip all the cheapo ones (shutterfly, snapfish, kodak, winkflash) - they screw up the basics - like, oh, skin tone
I've had hit or miss luck with Target - but not something I'd use for an album, kwim? They did print our easter cards one year and it was perfect -but Jack's birthday invitations were crap.
Hey - Heather - can you PM me your addy again? I misplaced it
