Balance transfer time restrictions?

Hi guys, I have an MBNA credit card, I have had it for years and have great deals. However, I've just started paying interest after the free period. My question is, if I transfer my balance to another card, can I transfer it STRAIGHT back to MBNA after say, a month, so I get my interest free period back? The reason I ask is even paying interest my payments with MBNA are lower than any of the other cards I'm getting quotes for, but interest is interest and I need to get rid of it if I can. Thanks