I need some advice regarding a center channel speaker. I am installing a 5.1 home theater system in our family room. The room is a new addition to our house. When it was being built, I roughed in 4 Polk Audio rc-85i in-wall speakers for my surrounds. I have a Denon 1613 AVR and an infinity PSW310BK sub, so now it is time to add the last piece. I need a relatively low profile speaker, and If like to keep it under $300 if possible. A couple I've looked at are the Polk Audio TL3, and the Definitive Pro Center 1000. Anyway, given my setup, what would you recommend? Many thanks to you all in advance!