So I am about ready to pull the trigger on my first SVS. I purchased the Paradigm Titans as recommended by several on this site, in addition to the equivalent Paradigm center channel. Two cheap Kenwood surrounds are in the corners of the room (soon to be replaced with Paradigm Atoms). I am planning on something out of the PCi series, but do not know what will go best in my room. Ron told me the 25-31 would be great, but a few posts here have me wondering if I would want to upgrade later. Anyhow, I would appreciate any help in deciding. I have a .bmp sketch of my room, but do not know how to attach it. Also, I am a touch confused on calibration. My Kenwood receiver has internal/individual speaker settings of -10db to +10db, while my master volume is -100db (or so) to 0db. In order to properly calibrate, where should my settings be? Thanks!