I Want to buy a HDTV (with 3D), Surround Sound Speakers, and a PS3 should I buy it sooner or wait till around?

Late Nov. (like the Monday after Thanksgiving) As I'm looking to save as much as I can. I'm wondering if I should buy it sooner (buy the TV one month, the Surround sound the next and then the PS3 the next month? (I already know the PS3 will be the same price) but mainly looking into getting a deal for a decent-nice HDTV (with 3D) and getting some decent-nice Surround Sound Speakers