I went with the FMB QS stands. They're kind of expensive (I hate spending money on stands) but you get a fair amount for the $$. I figure I'll drop a few pounds of lead shot down each of the tubes for stability and they should be pretty solid.

http://www.axiomaudio.com/fmsqs.html

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8