Hello Jim,
Those NuForce speakers look ridiculously sweet.
I own a pair of OmegaLoudSpeaker Super 3v2 speakers, and I use the Mapleshade Bedrock (not ultra) with thick carpet piercing footers with aplomb. They cost half as much as the speakers themselves, but I can confidently recommend them nonetheless. I use them in a finished basement with concrete foundation covered with carpet and padding. Pierre Sprey commented that concrete is the worst thing on which you can place your components (suspended wood being the best). Still the improvements in these already fantastic speakers was welcomed with open arms. The soundstage opened up and focused very noticeably, the bass cleaned-up and became a bit more powerful and deeper, and there was more of a sense of the music happening as opposed to being forced from the speakers. These will allow your speakers to perform at their very best.
Do you homework on what's available. I spent more time than I should, and I haven't found a more relevant design at any cost. The build quality is superb, the design is striking, and they even look really cool (although this didn't play into my decision very much, just icing on the cake).
Although Pierre's verbal descriptions verge on the hyperbole, his engineering background is near frightening. Better yet, he uses his music-loving ears as the final testing instrument. Subjective? Yes. Effective? Very.
If I had a limitless supply of money, these are still the stands I would buy without exception. Try them for yourself. If you don't love them, just send 'em back