From my past experience working in the 'metal finishing' industry, I'd suggest you let your buddy try it first before you do it. Anodizing (and other metal finishing procedures) may seem simple, but you have to know what you're doing (technique, knowledge, type of metal alloy you're working with) and how to handle some hazardous, even toxic, chemicals mixed properly to do a good quality job. Also, what were you planning to do with the left-over and waste chemicals? Don't try pouring them down the sink, as they probably rot your plumbing pretty quickly if they don't react and cause other immediate problems for you.
If you really want to have some parts anodized, my suggestion is to find a shop in your area that does the process and see what they'll charge you, then determine if its worth it for what you want to achieve (functional or decorative use).