Let me start by saying Thank God I found a please that can help me, I Hope. Ok, here is the situation I am in. I Have added an addition onto my house its 90 x 18. Its going to be 2 rooms (kids play room and my Home Theater room) 1) What is a good size room for my home theater its going to be 18 x ? I only want 2 rows of 5 seats and my recliner and the electronics. 2) I am hoping you all can help with my electronics (Prices Include shipping and tax) Projector = Infocus SP5000 $1499.00 Receiver = Sony STR-DE897B $272.91 DVD Changer = Sony DVP-CX985V (400) $314.15 Speakers = Sony SA-VE367T 7.1 (8) $206.47 Misc = Speaker wires and cables $200.00 Total $2492.53 The room is not divided yet so I can go 18 x what ever a good size would be. There is no windows in the back for about 27’ (so 27 x 18 is as big as I can go) The Speakers I have chosen are not that great but will do for now. 3) The walls are just studs, should I put something up besides drywall or some kind of sound proofing to make better sound. Like to do the right thing now since I have the studs in my sights.