Gout may be another disease of civilization which might be preventable with diet. Gary Taubes had a chapter about this that he didn't have room for in his book, Good Calories, Bad Calories, but you can read it online: http://www.fourhourworkweek.com/blog/2009/10/05/gout/
PayPal's Website Payment Pro isn't too bad. I've used it for 5 years and it's been mostly hassle free. I don't have experience with any others however.
Good luck. You may be interested in the paleo hacks site. It's one of them stack overflow sites for questions about stuff related to the paleo diet and lifestyle: http://paleohacks.com/