Another vote for SRA. I've tried quite a few isolation products that make my components sound different but the SRAs pretty consistently make them sound right. Their entry-level Tremor/Less platforms start at around $300.
CD isolation platfroms
I'm considering an isolation platform for my Ayre C-5 XEmp. I recognize that my current equipment stand, the Salamander Designs S30, is far inferior to the more elborate equipment stands availabe but it compliments my Mac electronics quite nicely. The Ensemble Zobro isolation platform is at the top of my list but I'm looking for other suggestions/alternatives. Thanks in advance.