Best current footers for preamps?

Have you tried Vibrapod Cones?  They work well for me.  I have them under my Herron Audio gear.  At the price, the Vibrapod Cones are a cheap experiment.

Thanks to all. The Vibrapods look most interesting for the $$.

I prefer Stillpoints as a first choice and Symposium Rollerblocks and a second choice but they are more expensive than Vibrapods.

Lots of good recommendations... Lots of products... I personally use Sistrum stands ( Star Sound Technology) on every piece of equipment I can... They work great: open and transparent...