I know you've got it "narrowed down"...
but the VTF-3 MK3 (which I have) is in the same price range and (from what I've heard) very comperable to that eD and SVS. The "feet" on it are also designed to de-couple from the floor... but I doubt the feet on either it or the eD will really be enough (it looks to me like the de-coupler from eD is extra, and I couldn't see the feet on the website).
I'm not as experienced as many of the guys on the site, but I can tell you that my VTF-3 has enough power to make my walls and floor groan and sounds - to me - pretty great doing it. I added a second, but unless you're trying to pressurize your entire house (like I have to), one would do you.