After an experimental 30GB OCZ solid-state drive in my MacBook earlier this year -- I bit the bullet on a next-generation, higher performance SSD recently. I bought an OCZ Agility - www.mac-ssd-drives.com/ssd-fo...ok.html - and the performance is even smoother. Overall, an SSD for my Apple computer has been the best money ever spent on an upgrade. I had no idea what a bottle-neck traditional hard drives are in comparison.