I have to replace my failed 6-mo. old OWC SSD in my 3.2 Ghz MP. I going with a Black Caviar HDD this time ("fool me twice..."). As before, it will only be for system and apps. Will I see any performance difference between a drive with either 32 or 64MB cache? I can save a few bucks with the former and don't need 1TB capacity with the latter. I use PS,LR and will be adding FCPX. Thanks!