Um I get why you are suggesting a smaller PSU, but you've got to take into account that in order to fit this the OP is going to have to do some modding to get it mounted. Just thought he should know.
I've got the same PSU (OCZ 500W) in my V352 and yes it is a little annoying it lifts the PSU 1mm, but it doesn't affect the performance and to be quite honest for the cost of it you can hardly complain.. is it really worth getting a new PSU because of some minor scratches?
Yeah to be fair the cost of the psu was ok, ill whip it apart and take a pic of the scratches and my attempt at cable management tomorrow..