I'm in the process if assembling my first budget 5.1 home theatre/music system, and I just can't decide what type of surround set-up to go with. I am equally interested in HT, music and future multi-channel DVD-audio. My room is 12'x16'x8'; mains on 12' wall; listening position centered, about 5' from back wall, and I can mount the surround speakers to the side (or a little behind) and above the chair. Onkyo SR600 or HK AVR320 receiver. I'll be using a Hsu vt-2 sub, so I've narrowed my choices to:

1) M3's all around; VP100 center
or
2) M3's or M22's and VP100 in front; QS4's in rear

My questions are:

In choice (1), will the VP100 integrate good with the M3's to produce a "seamless" front soundstage for movies, since they use different midrange drivers?

In choice (2), how sonically different will the QS4's be from the fronts when playing music?

To make things even more complicated, if I go the direct radiating route, I could upgrade the front M3's to M22's to better match the VP100. What would you choose?

Thanks in advance for the help!

I have M3's and a VP100 up-front and the soundstage is pretty "seamless" to me. BTW, I power them with a H/K AVR 520. I've read that if you go with M22's as mains you should get the VP150 to match.
IMO, if you went with M3's all around and a VP100, you'd have a very nice "budget" speaker set-up.