This deal is only valid through Sunday, July 20th.

JR.com has the Polk Audio RM6750 Six-piece 5.1 Channel Home Theater Speaker System on sale for $249.95 plus shipping, that's 58% off the list price of $599. The only other dealer for the "titanium" version system listed on PriceGrabber sells it for $429. Circuit City sells the black version for $399. ("Titanium" in the name refers to the color of the finish, not the material of the drivers, which are silk d...