Not really bro. Most of HTiB especially the DVD HT are lack of input.

If budget is a constraint i suggest you buy the Z5550 and buy a very good sound card.

But if you have the budget go buy a seperate component AVR, connect your PC to the either HDMI or Toslink or Coaxial to the AVR. And buy a pair of good front speakers and surround and subwoofer. But that'll cost you around at least RM3500 i think.