Dude I don't blame you, the soundtrack is TITS.
Also judging from the way the game looks on lowest settings (which is not bad honestly), I'm pretty sure you could run it with a $250 pre-fab. With $60 and some rebates, it's entirely possible to get yourself a PSU and graphics card that will easily put you in medium (if not high) settings territory, and I'm being completely serious when I say it doesn't look all that much worse than high (just enable 3D portraits), which is itself almost indistinguishable from ultra settings on any reasonable resolution.