Put this 120gb 8mb 'Cuda V in my Cube last Friday after OSX and Cocktail gave me serious problems! So far Quiet and fast. What really surprised me though was how much OSX with a fresh install and all the updates sped up - quite noticeable in my stock 450mhz. I guess that OSX can really bloat over time! OS9 used to be soooo easy to fix... My old hard drive, a 120gb 2mb 'Cuda IV is now in an external case providing backup after resurrection via Disk Warrior.