I don't have a HD set top box... but I also don't have a HD TV! I wouldn't want to keep everything but I'd like to keep some things.
The deal I think I can get that includes it seems good (250Gb PS3 with PlayTV, Uncharted 2 and extra wireless controller for about $650) but maybe I will think on it some more. The idea of getting a PS3 free with a new TV (or basically $500 off the TV) is tempting too.
Oh the next gen console game taunt me!
Btw I recently purchased Street Fighter IV for iPhone and think its fab. It's really got me excited for the full version. I thought the limited buttons would be annoying (and it is a bit, some of my old SFII tricks won't work) but there's still lots of moves and it plays really well. Except Bison is a bit cheap on the Hard setting.