Hey TheFactor,
I'm thinking, ok I'm voting that you save up for 3 channels of amp, if you're going to do it. That way you will never second guess, or worry, and it might allow flexibility in any speaker changes/upgrades in the future.
I've been buying all sorts of crap like a bat out of hell the last two years. Everyday that passes by, I do understand a bit better why there are those who say do it right, do it once. I tried my best, of course, I think everybody does... but that's where my "vote" stems from really.
Also, (forgive me if there's a different pic that I missed), but, I might consider (depending on present height of display, height of your eyes, how far you sit), getting the TV up higher to allow the center so sit on top of shelf (whether building something, or actually placing it on the center speaker). I think you would love the improvement to center speaker audio by getting it off the floor. Mine is low too, and I put a lot of absorption on the floor. My center is actually sitting on a treatment, which helped a LOT. still quite compromised, but I do what I can. It's the midbass that one would want to aim to absorb in this scenario.
Some speakers can handle TV weight. Contact Paradigm and see what they say. I know I've already helped someone at AH in deciding to do exactly that already.
