Hi, I'm planning on getting a Powerbook a little later this year but need to buy an external DVD burner now to back up all my data from my PC before I cast it aside. I like the idea of having an external drive so that when I have the Mac I can copy CD's and DVD's. It will also make the cost of the Powerbook a little cheaper without the super-drive. So ideally I need a USB 2.0 and Firewire connection, 4x DVD/12x CD-R and obviously be compatible with both Windows and OS X. Can anyone recommend one for around $150? Had a look on some hardware sites eg. Tigerdirect but they don't specify whether the devices listed are Mac compatible.