VistaPrint I actually market these in my online newsletters at work. THey are decent for the price - and for a bit more you can have their logo not printed on the backside. You just need to make sure when signing up that you don't automatically get enrolled to a upsell offer that will charge your card monthly. Its an easy mistake if you do and you can immediately have the charged credited. Just beware of that and it's all good.
Free biz cards I concur Have bought biz cards from these peeps several times. They aren't "totally" free (the word free in the USA apparently does not mean free of charge), you have to pay something like 8 bucks for shipping, but totally worth it!