For some time now I've been thinking about getting a firewire hard drive. It would be used primarily for storage of music (probably 20gb of the 160gb or so that I plan to get), and as a scratch disk. My question is: what exactly is "buffer size," and what does this mean for me, considering what I hope to use the drive for? Thanks! P.S. I've been looking at the LaCie drives, so anyone who has experience with one, feel free to comment. Also, this drive will be used primarily for the ibook in my sig.