That's pretty cool. I spent about $800 all together on my system so far. I will eventually do it all over again, but I'm fairly happy with what I have right now. I've gotten more fun out of figuring out things on my own and with help here and at mp3car.com than I ever would have gotten by buying something in a completed form. I'm working on a homebuilt inclinometer setup right now. I'm just starting but eventually I'll have a cool wooping alarm and sexy female voice screaming that I'm about to flip my Xterra. That should get the old sphincter tight in those tippy situations!