hmm Lews personally I would go for the Thermaltake 560 Maniac .. as both PSU's seem to rate favourably anywhere I have read, I would take that one, cause you can never have to much power, however having said that it would depend on the noise level and taking a guess I am sure that the "maniac" is the quieter of the 2 IMHO <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />