This deal has ended.
Buy.com has this 5.1-Channel JVC SXXSW6000 Home Theater Speaker System on sale for $42.99. This features a up to 650 watts of output, and comes with a subwoofer, five magnetically shielded satellites, and all the necessary cables. This is one of the lowest prices we've seen for a six speaker set anywhere. Shipping is free and there's no sales tax (except CA, MA, MD, TN).