X-Setup allows easy creation of your own tweaks, and has an internet update feature to get more plugins. I've been giving people registry suggestions over the last week by editing .XWZ files in X-Setup. You make plugins in VB and give them to your friends to put in the X-Setup plugins folder, or just save the .reg file of tweaks you have made. Plus you can even submit them to X-Teq. Chances are, however, that X-Teq has nearly any tweak you can think of already. Seriously. It's my favorite tweak program!