If so this could indicate you have a very large amount outstanding?
In which case you should note that, you may not get the same large limit on the card - So you may max out your card with the transfer and thus not be able to make any more purchases.
I was looking at MBNA recently - (although 1.9% for first 6 months) you can transfer cash to your current account so dwefinately a short term cheap loan. But its not for no reason, they reel you in, then after 6 months when you are large amounts owing, they then whack up that % charge!!!
If you have a pending SSIA to clear off, then you should be laughing
Paddy