Last week I received the new credit card from CitiBank, which I immediately put it in use by transfering some of the high interest (7.75%) debt in my HELOC to this account. Note this 0% offer is valid for one year.
I found out this offer from MyMoneyBlog.
I have done credit card balance transfer since year 2000. I think most people care about the rate, and the transaction fee when doing balance transfter. But I think the time length is also very important: