Something like this?
07-27-07: Jgiacalo
A good cheap tweak - and significantly better than Vibrapods (I've tried both) - are V-Pads available from Heating and Air Conditioning suppliers in most cities. V-pads are two pieces of ribbed rubber with 1/2" of cork in between. VERY effective vibration dampers that I use under my shelves and under my turntable spikes.
I wonder if this is what Mapleshade uses as the source material for their Isoblocks?