John,
There's only one problem with the Interactive System Builder, it's not very realistic. Each time I drop a new pair of speakers into the room, I don't see my pissed off wife clenching the checkbook tightly between her bony little fingers.
Can we get that fixed 
Speakers: Aperion 6T, 6C, 5DB, 6IC, Bravus 10Dx2
Monitor: JVC RS20U front projector with Stewart Velux 100" screen
Receiver: Yamaha RX-V1800
Blu-ray: Yamaha BD-S2900
Amplifier: Emotiva UPA-7
Conditioner: Panamax M5300PM