So I'm probably switching to a powerbook 1.67 this fall before I start grad school and I am in the process of archiving all my mp3s, movies, etc... from my current PC. I'd like to purchase a dual layer external burner that will be compatible to both my PC and future Powerbook. I'm thinking about the LaCie. Any thoughts? I found a firewire only model for $105 and a firewire/usb 2.0 for $129... are these decent prices? Should I pay the additional $24 for the usb 2.0? I need help. Thanks.