My computer has exploded

[Autocratic]

So today I was playing some game demos, namely the latest FIFA and Madden 04. The games both crashed relatively often, and I haven't been having trouble in other games or programs. I did a reformat a couple months ago and have had no real troubles since. Then, during Madden, the computer restarted. The next time, it turned off. I was confused, and tried to turn it back on. No go. I turned it off from the surge protector, then tried turning the surge and computer on. Nothing happened. The next time I tried to press the power button there was a tiny flicker of blue light (I have blue LEDs throughout my PC) and a pop. Something smelled like smoke. I opened up the PC, and it didn't smell too smokey, and nothing seemed to have exploded. Nothing seemed terribly out of place, but I'm no expert. Is this most likely a power supply issue, or could it be something else? I am thinking about buying a laptop to hold me over if I need a new case or something, I don't have the time to do any of the rebuilding myself.