We're going to get it in the press first as a precursor to approaching radio. That way we should get more support. I think it's going to be a phone/ email campaign targetted at the most likely suspects, probably no more than 6 DJs.
If it works, I'll gladly go into more detail re: strategy.
But, a friend of mine just got on the train, sat outside radio 1 & 2 buildings, waited for the DJs, then gave them a CD and asked them to play his songs. 3 of them did! You could always try that?