OK after alot of Peer-Presure I'm considering SVS. I have the opportunity to Buy a Velodyne CT-150 for $350.00 shipped. This is a 15" Sub. Now I am also considering the SVS PCi 25/31 and the 20/39. Given my room dimensions (Below) which Sub would be the best. I will be using the Sub for 95% HT and 5% Music. I want LOTR's to be as close to the Theater Experience as possible. Room Specs - 18 X 18 with 10Ft ceilings. Two entrances in the Rear (No Doors). BTW- This is off the Subject but what brand of Speakers/Subs are in the (Majority) of Theaters. Thanks for any Advice. This is my Third Post asking for opinions. I like to do my research before committing. Especially considering that I've never heard one of these SVS Models on person.