I have downloaded an MP3 from this site that has some binaural beats on it, similar to what you find on BWGEN (possibly even created on it). Honestly, I can't sleep to it. It just keeps my brain too amped up to fall asleep. I can't bring myself to pay the 40.00 for the retail version of BWGEN either.

From what I hear, there doesn't seem to be a magic pill. Just persistance, a positive attitude, and a dream journal...