For a college comp, you certainly want it to be as quiet as possible. Even if the drives are Seagates, the acoustic level of the total noise coming from the drives would theoretically be twice as loud as one. You also get twice the heat. You wouldn't want the rig distracting you while you write a paper, would you?
Eschew the two drives in favor for one of Seagate's 8th gen drives or Maxtor's MaXLine III/DiamondMax10.
And about the 6800GT - they run hot. Not only that, but you're never going to run SLI with that nForce4 Ultra mobo. Go with a X800XL for about a $100 cheaper and you'll be much happier.
Thanks for the suggestions. I guess I was under the impression that nVidia was "winning" right now. I wasn't planning on running SLI, but if I can save money and get an ATI card (I've always preferred them, underdog maybe?) that would be nice. The heat doesn't bother me so much since we get free A/C from the school (thank God my roommate has allergies and "needs" it
) but thanks for letting me know what drives are quieter because I was definitely in the dark on those, just kinda went with what sounded nice.