48 Hour Print - http://www.48hourprint.com/
Vista Print - http://www.vistaprint.com/ (not to be confused w/ Windows Vista
And another creative site I'd recommend checking out is http://www.moo.com/ -- they've got a lot of creative sort of cards. Not necessarily great for business cards, but can work well as thank-you notes and things of that nature.
48 Hour Print - http://www.48hourprint.com/
Vista Print - http://www.vistaprint.com/ (not to be confused w/ Windows Vista
And another creative site I'd recommend checking out is http://www.moo.com/ -- they've got a lot of creative sort of cards. Not necessarily great for business cards, but can work well as thank-you notes and things of that nature.