2millionblog.com has a great article on 0% balance transfers. I thought I would post the link here rather than repeating such a fine effort. I do want to a add a link, however to help you find credit cards with 0% balance transfers. One thing to keep in mind, and this is critical, you must read the terms (a.k.a. the fine print) to ensure that you know what percentage, if any, you will be charged to transfer a balance. Check out bankrate.com for their credit card offer search. Select "Best Deal - Balance Transfer" under "What is your goal?"
Also check out an article on Motley Fool regarding 0% credit card balance transfers.