sound question...
 

ok so i have a extra 10' sub im not putting in my car.... how would i go about hooking it up to my computer?

from what i know, you'd have to have a AC-DC transformer to connect to your amp. Connect your amp to the transformer, transformer to wall outlet. Then connect Audio OUt form computer to Audio IN on amp and you're set. The transformers are like $50 from Radioshack......

sounds right....
if you needed a visual you could always run over to best buy and look at one of their sound setups for the PC and see what lines are being run from where to where.

you'll need a box too. IMO, only a little bigger than the sub and ported wouldnt hurt either....