I would ask around the Christian colleges and Bible schools and their students. I was in a few of those debates in college (I had to argue in favor of abortion once - and despite being vehemently opposed to it personally, I "won" by outscoring my opponent in citing numbers and facts and twisting them to support my argument). College kids rock, man. Those older guys had better be well armed! Call the college profs and get some ammo from them. They've probably accumulated quite an arsenal over the years from previous debaters.