Hey guys, i recently bought the Seasonic X-850 at amazon, i'd chose that PSU because of the high rated reviews, i came from the CM 500w eXtreme Series. This unit last me just 1 year until it started to permit power surge on my system, my GPU is the GTX 660 SC which require at least 450w and 24a on the +12 Rail. I picked the Seasonic for being a better quality PSU, rated 80 Plus Gold and for future builds. Did i make a good choice? since it's a really expensive PSU.