Thank you for your input JohnK. I really do appreciate it! That makes me feel alot better about the placement of my subs. Is this when I need to adjust the phase accordingly to each sub?

2 = M60,4 = QS8's,1 = VP150,1 = EP350,1 = EP500
HK247
Optoma HD70,110" DIY screen
Xbox360 & PS3