Blueswan,
Those triangular bass traps in the corners look nice. I'm currently considering 3 options: the Kinetics traps, panels from realtraps.com, and ASC tube traps.
Given my listening room is also my livingroom, I want to keep the number of acoustical treaments as few as possible. For corner placement, the Kinetics traps appear to be the most aesthetically pleasing; but, I have crown moldings in the way. Hmmmm...tough choice.
I like the realtraps, but the corner placement for them may be a bit intrusive. Oh well.
Ken