I am looking to get an external HD to backup my system before upgrading to Tiger - backing 20GB of data to DVD is too much hassle. I have been leaning towards a "portable" external HD. Is there any down-side to a bus-powered HD? I like the idea of fewer cables, but I seem to recall that connecting the iSight and the iPod to the computer at the same time was causing issues which many felt were bus-power related. I have a strong preference for a FW drive as I am running out of USB ports. FWIW, I have a 1.8GHz SuperDrive iMac G5 w/1GB RAM and the following devices connected: * 3G 20GB iPod (thinking of selling for a 2G iPod Mini) * USB Bluetooth Dongle * Apple Keyboard/Mouse * HP DJ 5740 * DSL Modem via Ethernet Thanks.