Anyway, to get to the point. I'm really more of a programmer than a marketer, and I've had a (very vague) idea in my head for a membership script for a long time now. I'm specifically not looking to clone Butterfly Marketing, MemberSpeed or anything like that (although they both have a few features I'd like to include). Those are great scripts with their own market, but the price point is a little on the high side for someone in my situation and I've heard that the software can be pretty complicated for a beginner.
You're all marketers here and I'm sure many of you are running or planning to run your own membership sites, so I thought I'd ask here. What features do you look for? If I were to write this script, what features would you expect it to have if you were planning on buying and using it?