ground the outlet or not??

Guys - I have the Equi-tech cabinet mount power center with an earth ground

Earth ground? No it ties Neutral and safety ground at the output like all good isolation transformers should. Neutral and ground are electrically the same point. But 1 carries current and the other is for safety AND should only be tied together at a single point. The exceptions are isolation transformers and uninterruptible power supplies.  

Keep the outlet grounded