I have just about completed a 17.5 x 21.5 HT. I intend to have a Denon 3803 receiver, an Infocus 7200 projector and I am considering strongly the CDM 9NT - B&W Mains, with 4 - CDM SNT surrounds and the CDM Ctr. My question is I have also read about the 750 & 550 Rockets. I am a newbie and the intent is theater and music. Should I try the Rockets and save big $? Thanks.