Home Theater Gurus! What else do I need?

[badchannels]

Okay,

I have a professional installer coming out for an assessment next Friday. At this time I have the following set up.

Audio Aspect

( 2 ) Polk Audio RTi10's ( Floor-Standing ) - $699 new pair at Crutchfield
( 4 ) Polk Audio Fxi3's ( Surround ) - $124 X2 new pairs, made accepted offer on ebay
( 1 ) Polk Audio CSi3 ( Center Channel ) -$124 new, buy it now on ebay
( 1 ) Klipsch Sub-12, 650 Watt Subwoofer - $400 New in box, made accepted offer on craigslist
( 1 ) Onkyo HT-SR800 7.1 Channel Home Theater System - $459 at Circuit City on sale

Video Aspect

( 1 ) 120" 16:9, Elite EZ Frame Fixed Projection Screen
( 1 ) VPL-VW50 SXRD 1080p Front Projector - $3800 on ebay, New in box, with screen and universal ceiling mount thrown in for free
( 1 ) BDP-S1 Blu Ray Disc Player - $700 from Dell

Power / Protection

( 1 ) Monster Power HTS1000 Power Center - $130, made accepted offer on ebay NIB

Viewing Experience

( 1 ) 800 Watt Power Pro Buttshaker Amp ( 4seating.com ) - $380
( 8 ) Standard Butt Shakers ( 4seating.com ) - free with seats
( 2 ) Rows of ( 4 ) Argonaut Theater Seating ( 4seating.com ) - $2772 on ebay
( 1 ) Logitech Harmony 880 Universal Remote w/RF link - $130 NIB, made accepted offer on ebay

Should I use the receiver out of the Onkyo HT-SR800 home theater system or should I go for another receiver? Do I need another amp or am I missing anything else?

Here are the specs on it:

http://www.onkyousa.com/model.cfm?m=...&class=Systems

I have until Friday of next week to have everything at the house for the assessment. So I need to get things ordered now. What else ( if anything ) am I missing.

HELP!

* picked up the Onkyo 805 for now based on the advice given, if it isn't adequate..I'll go with one of the Denon models. Thanks for all the help guys. I also added some of the pricing ( not sure if that is allowed or not ), but it's how I managed to pay for everything. Total cost was about $10,500. Nothing was charged on credit, all cash over about 2 months time.