Ok everyone, the opinions and facts are desperately needed! I have no way to audition the LSi's, but I am wanting to upgrade my RT series speakers. So here goes...for those that have owned the mid/late 90's RT Series and have upgraded to the LSi series, I need to know if this would be a worthwhile upgrade. I love what I currently have (CS350LS, RT16 mains, RT12 surrounds with tweeter upgrade like 16's and 350), but I have noticed that the mids can get kind of harsh at high levels. The upgrade would be LSi15's, LSiC, and either LSi9's or LSiFX's as surrounds. I have heard that the LSi's like seperate pre/pro + an amp vs receivers, so my Parasound AVC2500u and AT2205 (220 x 5) should be fine. It is mostly for HT vs music, but would like to listen to more music more often. Monster M1000 series interconnects all the way around, and only Monster XP speaker wire for now...(eventually this will be M Series as well). DVD/CD is a Sony 9000ES. Fire away with the help and opinions. I really want to stay with Polk, but am being tempted by B&W.