What is the best HT 5.1 system 2k

www.av123.com has some good systems in your price range.

If you are inclined, you could build your own and get a lot of bang for the buck.

The system will be used primarily for movies 85%, the balance as radio/cd. The room size is 14 x 19 with only three walls and open to large kitchen area. The ceilings are high (vaulted). I have looked at PSB speakers - B25 (L/R channel) and maybe the T45 or 55 as mains with the complimentary center channel. The second set-up would use Revel products F12, M20 and center. Can a receiver be used to bi-wire these speakers?

Bi-wire yes. Bi-amp no.

Eldarado, can you elaborate on your recommendation? Have you heard any of AV123's offerings? I checked out their web site and they seem legit. I wonder if their products are any good?

I have heard the X-Series and Rocket series from av123 and it has a really high bang for the buck ratio. For HT they are outstanding.