Need advise on A/V receiver $800 to $1,300

I am putting together a home theater system for my media room that is 14 ft wide and 37 feet long with a 155 inch diagonal screen. The room has a 12" tier at 17ft and another tier at 25 ft so the ceiling starts at 10 ft and at the back is 8ft I am going to use it for 45% movies and 55% tv sports 5% music. I have put the following system together.

Definitive Technology

BP 7001 2
C/L/R 3000
BPVX (2)
BPVX (2)
Supercube Ref

Projector In82

I was going to purchase a Onkyo TX-Sr805 receiver but was worried about the heating problems and its ability to drive the speakers.

What are your reccomendations and why.

Please help I am not knowlegeable in matching speakers with the proper A/V receiver that will dirve them.