peterr53: I have my 2000s on Sound Anchor cradle bases, mostly for stability, but they did help overall with imaging and cleaned up the sound a bit.
t8kc: The subwoofer option works for me. I am a big proponent of dual subs for stereo, however. Ohm makes a subwoofer, and I cannot say enough good things about my pair of Vandersteen 2Wq subs with MHP5 battery biased crossovers. I actually owned the subs before the Ohms, and a seamless blend with the Ohms was crucial. In fact, had the 2000s not worked well with the Vandy subs, I would not have kept the Ohms (that's how much I like the subs). When you add the 300 watts per channel of the subs to my 150 watts from the Odyssey amp, you get pretty close to the 500 watts per channel mapman uses (I know the 300 watts are not driving the Ohms, but, still, it's interesting). I reviewed the Vandy subs here on Audiogon if you want to read more. They have a unique crossover architecture, and are designed for corner placement (why other subs are not, I will never understand). I guess it depends if you are a bass-freak, like me, or not. The 2000s put out a decent amount of bass down into the mid-30s, I would guess, but there is no substitute for a pair of ballsy powered subs.
But if I had the cash, I might go for the gold with both the subs and a bigger power amp. Nevertheless, I am content with my system as it is, even though I know it could always be better.