If you need professional colour printing, and a great way of handing out your details to prospective contacts, some of the offers at Vistaprint are worth a look.
Originally set up to give small business owners access to economical high-quality custom printing, Vistaprint have been providing print services for some time now and were one of the early sites to offer online design and printing to anyone who could use a mouse!
They have grown into a global organisation which does all its printing in the Netherlands, has a research centre in Switzerland and offers a 100% quality guarantee.
They used to offer free business card printing (you just paid for tax and postage) but seem to have changed their promotional model recently. That said, they do offer special deals now and again. Just search for "free vistaprint business cards". The last time we did that we found offers for 50 economy business cards for £2.99 and 100 standard cards for £4.99, with a free card holder!
When we launched WeLikeArtists.com, as a test, we had 250 yellow-green cards printed, using one of their templates. You just fill in your details, select if you want anything on the back (at an extra charge) and then pay online. We selected the cheapest (longest time) postage and they actually arrived quicker than expected.
They also offer other products such as postcards, T-shirts, pens, magnets, etc. They will keep sending you e-mails with 'brilliant, just for you, offers' which might be exactly what you are looking for, but you can always change your newsletter preferences and select one e-mail a week.
On the whole, their offers are well worth considering if you need a few simple cards.
You can design and order your cards online and pay, instantly, with credit card, debit card or PayPal.