in my ubuntu 11.10, compiz completely knackered my setup and I was wondering wil this still be a problem with all the unity plugins in 12.04?
No, CCSM can still wreck your desktop configuration
MyUnity is the commonly recommended "power user" configuration tool as of 12.04. Instructions on its use can be found here.
Don't expect crashless ccsm in 12.04 unity ,
As the alternative you can use