I got two Sparkle GTX-460's from OcUK's, they are almost whisper quiet; even under 100% load on Furmark; however one was faulty and OcUK replaced it with the Palit and the fan whine is so loud I need to turn up my speakers when playing games; totally unacceptable. I was surprised they sent me it; it isn't a like-for-like replacement.
To boot overclockers are being arsey about swapping it out. I bought the OcUK cards because it showed a reference exhaust cooler and they were nice and cheap

whenever I mention they haven’t replaced like for like due to the cooler discrepancy they ignore me >_<