i have that Bravia system, with rear wireless speakers. But i use for the upstairs living room and not my Home Theater room. Overall it's a pretty damn good system but for a pure home theater, nothing beats 6.1 sound. That rear center speaker is a must. I recommend Onkyo, Akai or Harman Kardon
As for a projector, Benq actually makes one the best HD projectors out there.
http://store.benq.ca/benq-ca/searchr...&culture=en-CA I highly recommend the W5000. - it still blows me away.
As for the screen, make sure you talk to your dealer about this. There are some real crappy ones out there.
Good system for 5K is definitely possible. If your serious, then pm me and I can hook you up with a buddy of mine who really knows his A/V and will help you set it up (plus one more little goody but you'll have to pm me for that)