Thanks!
I'm working on a post about my TurboTwist 2 addition, but it won't be done until next week. I'll be out of touch with modern technology for a couple days, but after that I hope to get things up to speed.
I'll be sure to take a lot of pictures along the way. I'm trying to design my swappable panels so they are simple enough for my kids to understand, yet enough to play the majority of games I loved when I was their age.... It's amazing how many different controllers there are.
I've already decided that the picture I've posted of the top is slightly off.... I've moved the controls one inch closer to the front, more for visual reasons than anything else. It just looked strange with them nearer the back.