Has surround sound speaker(5) setup with sub woofer---wireless mouse and keyboard-----2 disk drives----belkin wi fi adaptor

I'd give up on the CPU itself and maybe list the smaller accessories on eBay, but don't count on getting much at all (you can compare prices there).
You might be better off with ads up locally because shipping might cost more than you will sell for online.

If you happen to be in vegas ill buy it