I found this article on Pubmed and thought it was quite interesting. It's by no means the final word, but it sounds like creatine has more benefits than what it's advertised for. Short summary: 3 week creatine supplementation in college rugby players increased the DHT (DiHydroTestosterone, a very strong androgenic testosterone) to Testosterone ratio by quite a bit. Very simply put, this would mean your hormones would be more efficient.
Actually makes me think about trying it, should I have 20 bucks to spare over the next couple of weeks.
Again, I realise this is not gospel..
Link:
http://www.ncbi.nlm.nih.gov/pubmed/19741313


