If you haven’t discovered BANS (Build A Niche Store) yet, it is worth looking into. I have set one up and have really done very little with it and I have already made $12.00 from eBay.
The Niche Store Builder has written an ebook about how to converting WordPress Templates to work with BANS. There is going to be a whole series of articles, so go and subscribe to the RSS feed so you don’t miss a single one! This article series is a must for anyone interested in BANS or has purchased BANS and wants an updated look to their site.