Hi everyone. I really need some advice on using in-wall's for rear surrounds(including rear centers). They will be going into my ceiling. You know that whole WAF thing. On the way is Axiom M80ti's, SVS PB2-Plus, and Denon 3805. I have looked around on the net and there are in-walls from $50(Audiosource)to $1000 (Sonance). Since I will probably be buying 4 and I am over my budget already, I'd rather not spend too much on each speaker, mabye $100 each if possible. Does anyone have any experience with this? Thanks for any help.