Welp. PC died. Dunno what happened.
Came home, turned it on, smoke and burning smell, panic ensued. Tested new power supply, mobo and nothing. If I hook up the 12v CPU plug, it won't even turn on. ARGH!
Didn't want to deal with it, so I picked up a i5 2500K and Z86 motherboard @ Fry's for $280 for both. Now I just need a videocard.