Axiom Home Page Forums General Discussion Home Theater New HT System

Firstly I am new to HT, so bear with me....
I am purchasing an Onkyo 797 receiver to control my HT system, I was looking at the M80Ti's for fronts and Qs4 for surround and the vp150 for centers. My questions are:
1.Is this a good combo?
2.Why should I pick Axiom over say Paradigm or Klipsch?
3.Is the Onkyo capable of powering the M80's (4ohms)
4.Would the subwoofer be need?
5.Should I look at another receiver for this speaker setup?
My HT room will be approx 14x19ft...with the TV on the 14ft axis.

Thanks