Websince i don't know the nature of your business, i'll throw this out there too:
Webmoo. com is by far the best option.
They made a tiny mistake on my business cards, which they completely owned, fixed and sent out a replacement batch within 7 days for free.
Webmake sure your card says what you do, not just your company name/contact information.
You need your card to be able to sell at least the general idea behind your business.