My basement - and theater along with it - is almost finished. It's been over 4 months so far, and I've been set on an Anthem AVM 40 all along. The other day, however, I was offered demo pricing (20% discount) on a Sunfire TGP 5. Does anyone have experience with these brands? I'm hoping the Anthem dealer will give me a money back guarantee so I can essentially compare them at home.