Billy Baggs is great. I have their amp stand and love it. Also, a fantastic sounding (or, should I say, lack of sound)stands are the Studiotech. Very rigid, very, very clean. My all tube system improved dramatically in all areas when I put these two in my system about two months ago. The dynamc shadings, tonal character, soundstaging, and important pacing of the music improved far more than I would have thought about $600 investment would get me.
I got mine through Audio Advisor.