I'm in the process of setting up my 1st HT. I have the Yamaha HTR-5490 and now am having a hard time deciding on speakers. Any thoughts on the following would be greatly appreciated. The room has hardwood floors and is approx 13' X 18'X 8' ceiling. I want to stay under $2K preferrably closer to $1500. It will be used roughly 60% HT and 40% music (Jazz, Dance, Rock) The packages I'm considering are: Axiom EP175, M50ti, QS4 & VP100 @ $1500. Diva 4.1, C3, 2.1 @ $1200. Diva 6.1, C3, R3 @ $2000. Rocket RS750, RSC200, RS250 @ $2200. And finally the new HTD Level3 "Z combo" (front and rear towers) @ $1200. Is there any advantage to having the same size speakers front and rear? Thanks in advance.