I am having the same issue you describe TTERZ. I was on the fence as to where to go next. I have just put new tires on the car and it didnt change anything. I didn't get them road force balanced though. I think I will try that to start. Thanks for the info.
On you mount issue, I would probaly just replace that rear trans mount. When the front mount failed it really stresses the rear one. I replaced my front one and only at that point did I notice the rear was very weak too.