Hey all! Blast from the past, huh? Just wanted to bring a conclusion to this thread (not that it needed one, but... ); the hot-rod Acertosh finally gave up the ghost a little while back. I never determined exactly what the cause death was other than it was an electrical surge to the motherboard. With many things going on in my life at the time, I grudgingly retired the project and moved on. If anyone still has one of these and has followed the progress here, I've kept most of the parts since so much work and documentation went into them (screen assembly with iSight webcam replacement / modded dual-link cable / high res LCD; extended battery; higher-amp charger; etc).
It was a lot of fun rereading this years later and made me miss helping pioneer these hacks. Hopefully I'll have the time and money for similar projects in the future!