Tom, your post came at a good time for me. I've been trying to decide between the HSU STF-3 and the SVS PB12-ISD for a few weeks. I've been looking for a reason to pick one over the other. Your room is very similar to mine and your decision to go with the SVS is where I am leaning. Barring a change of heart (which is always possible!), I will be ordering the PB12-ISD.

It's time to move on to something else, like a DirecTV HD receiver with Tivo!!!

John