Been through 4(!) gfx cards(overheating my ass, 35c isn't HOT goddamn it!), two external harddrives, two internal ones and 1 PSU in less than three years. Not to mention dodgy performance and the mandatory upgrades every second year so that new (and mostly; shit) games can run relativly smooth.
Maybe it's just me having bad luck, but if I would get a RROD on my Xbox, it would be cheaper than what my PC would cost me! Anyway, I only play Oblivion/Fallout 3 on PC, and an odd session of Civilization 4, and you don't need a spaceshipcomputer2k for that.