Engine Mounts....???

[agood]

I have read many posts here about the engine mounts....but I cannot determine if mine are bad. I have allot of vibration at idle and it contiunes as the engine speeds up although it does lessen some but I think it is just because the RPMs are up....
It is so bad, at idle, the hood of the car shakes and things rattle inside the car....
I looked at the mounts and I can't tell much....I did notice that when I put the car in gear the engine tilts a little so I held the brake and gave it some throttle and it lean some more....but it did not ever leave the mount......is there supposed to be play in the mounts or should they be solid and hold the engine steady during a load?

I have read about "rack dampers", "Diesel Purge", Engine Shocks" and other things...but frankly just don't know where to start....
Any advice would be greatly appreciated....
Brian