I just bought the CS10 Center channel speaker and i'm replacing my 7 yr old sony surround sound in a box. I was wondering what the next best item to buy would be. Should I replace my front speakers or rear next, if so should I stick with the same TSi series. Also do the front and rear speakers need to be the same or could I get the TSi200 for the front and the TSi100 for the rear. I mostly use the speakers for 65% movies and tv and 35% listening to music. Any help would be appreciated.