Tangential question: I've got a MacBook Air and a first gen (of the current design) white plastic MacBook that stores all my music/video (300GB music, 100GB video, with a bunch more video on external USB drive). My issue is that it is very slow these days, and I feel like it is IO bound with my big, kinda slow HD. I'm considering replacing the optical drive with the OWC SSD hack. Then, the OS & apps can live on the SSD, music and video on slow HD. Thoughts on performance? Anyone else try this?