$85, will probably be better than the TV speakers, and, well, its $85
http://columbus.craigslist.org/ele/788942191.html
Compnent:
Reciver
http://columbus.craigslist.org/ele/788932238.html
Speakers are all over craigslist, get model numbers and make nice with google.
For cables, hit parts express in dayton, they have some respectable cables that arent prices like the monster stuff.
The also have parts to build your own speakers, everthing from basic ones to audiophile quality, and the powerd sub kits are decent to.
http://www.partsexpress.com
Edit:
This is the reciver I am running, has not failed me yet, and will piss off the neighbors. I have 15" mains, and rarely need to use the sub chanel (unless the neighbors are gone)