Don't know if anyone is still reading this page, but here is my info. As far as I have read, anodizing dosn't actually require very special equipment, but I have never done this. Anyways, a page which I think has been helpful (once again, I have finals this week and havn't been able to try it) is this:
http://www.warpig.com/paintball/technical/anodize.shtml
As far as I can tell, the author of this page knows what he is talking about. I have read elsewhere that the process and materials he uses are perfectly fine and can produce some nearly "professional" quality results. I plan on trying this out in about a week, and I will be sure to post the results here.
Happy Engineering,
El Bob