I would look also look at http://silentrunningaudio.com they make Isolation Bases for your specific table.
Isolation platform for non suspended turntable?
I am currently using an SME 10 turntable on the top tier shelf of a Sanus System CF-5 component rack. I have heard recommendations for the Townshend seismic sink, Bright Star Audio componenets (e.g. Air mass 3 in conjunction with a BIG ROCK,), and Symposium Ultra isolation platform. I also hear the Sound of Silence products are very good but are a little pricey. Do any of the Audiogon members have any suggestions/recommendations?