1. Yes 2. The CS2 is the better center, period. The CS1 should "never" be paired with anything bigger than the 50. The CS2 goes with them all. 3. See 2 4. I wouldn't say that. 5. Yes and no. Depends what KIND OF BASS you wish to hear/feel vs your budget. I listen(especially at night while using Night Mode) w/o the subwoofer quite often on broadcast. DVD/BD I always turn it on. As you noted(if you looked them up) above, I have numerous sets of speakers. Except for the DCM TF600(which is no bass slouch itself), they can all achieve 35-ish hz...all by themselves. So, buy your 3.0. Bookshelves or towers, makes no difference. Even this... http://www.amazon.com/s/ref=nb_sb_ss_i_0_8?url=search-alias%3Delectronics&field-keywords=sony+sscr3000&sprefix=sony+ssc%2Celectronics%2C0 http://www.amazon.com/Sony-SSF-5000-Floor-Standing-Speaker/dp/B000OG4E1G/ref=sr_1_4?s=electronics&ie=UTF8&qid=1352122651&sr=1-4&keywords=sony+ssb3000 (essentially the tower version of the SSB3000) Would be... 1. Huge improvement over the TV 2. For your ears, might be enough without a subwoofer. Point is. Buy your 3.0. You can always add a sub.