Sorry to add in another PSU, but I have been offered yet another deal. For 3/4th of a cost of the Seasonic/Liberty, I can get a slightly used Antec TrueControl II 550W PSU (used 1 year)...... not sure about Antec and their compatibility issues with DFI but I have another option to throw in here .. I know the OCZ is probably better (more $$) and it's brand new, but I just wanted to get some thoughts on the Antec....since everyone's saying ~500W is sufficient!