Read the datasheets, connect appropriate pins, program teensy to use new chip, etc. It's fairly straightforward logically, even if you're new to electronics.
Well since you already got it to crash, fuzzing isn't necessary. Attach Olly or another debugger to whatever it is that's crashing and see what actually goes down...
Haha I have a friend who smokes that much it's crazy. My tolerance isn't quite that high, but having to smoke the majority of a dime by myself to get to a toasty stage is pretty ridiculous for me :/
I never enjoyed weed that much myself (I have a naturally have a high tolerance for THC for some unknown reason), it just made me want to sit around and eat lots of food XD It's fun every once in a while though but overall a pretty boring drug :/
Well, what kind of music do you like? Can't recommend anything without a base.
Edit: House, hard house, electro house, hardcore, speedcore, gabber, breakcore, jcore, hardstyle, jumpstyle, and dubstep are all pretty good genres of electronic music.