I got some good deals on e-bay and have most of the stuff to continue my build. I did go with a very bright TFT LCD with a controller built in. I'm also going with a micro ATX MB that has video and audio built in. If it looks and sounds crappy, I can always add cards later. I really want a DC to DC power supply, but can't seem to find out how much they cost. I will probably just use an inverter until I can get one. I'm not too worried about the heat. It gets hot in the desert, but my truck has stayed pretty cool with the window shades in the windshield. I've been thinking about a thermostaticaly controlled exhaust fan for the truck just in case it does get up there. I'll be mounting the drives vertically to reduce vibration worries. I plan on powering down when I do the hardcore stuff. I only move a few feet at a time then anyway.