Hey guys, thanks for all the comments. I'm currently working on a heater for my truck. Right now I have a small 12v heater, but my 12v battery is kind of limited- basically only good for defrost and stuff. I really need to install a heater off the high voltage system, but I haven't gotten around to it. It is getting a little on the cold side!
A heater off the high voltage pack wouldn't be much of a load at all. You'd be looking at no more than a couple miles off the range. It would probably pull about 15A- compared to the 140+A the vehicle uses, it's not much.
I don't think I have time right now to do a build thread- when I get the chance I'll post up a few pics of my Tercel. Other than that, I'll try to keep my blog (greenflightev.blogspot.com) updated, so check in often! I'll try to put all of the specs in the garage too.