Snagged a CSW's Newton Series MC155 center channel speaker. It was the last one left. I think that should be a good match to my Newton Series M80's.
Also I decided to go with a Yamaha RX-V667 receiver. It passes a 3D signal and has 2 zones so I'll be able to run my deck speakers. At this point I'm going to see how that setup sounds without the sub. I'm sure it'll sound light years better than the crappy speakers in the TV but eventually I'll get a sub.
Thanks for all the helpful input.