Free Credit Card Transfer Balance

Credit card balance transfers….?
Is there any credit card that will allow you to transfer your WHOLE balance (not just £500) onto their card as a new customer? I filled in a form for one of them, to be told that the most i could transfer is £500. My balance is £1000. I want to get the 6 months interest free on balance transfers. Thanks.
Here, check this site. Its all about this sort of stuff.
It was featured on Radio 2 as well.
http://www.stoozing.com/
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