I would have to vouch for PRINTING.IE - IRISH ONLINE PRINTING SOLUTIONS also - I have got a couple of jobs done with them and found their prices competitive, their quality good and extremely good customer service. Plus their website is navigable, intelligible and gives clear pricing.

I got some business cards done with them and was very happy with them.

For the money, probably the best I've seen - I've had small runs of cards done for similar prices with other companies and was not happy.

For a small amount of cards, this is who I would go with.