I currently own the LaCie d2 Hard Drive Extreme 250GB Triple Interface and am looking to upgrade to one of these two: LaCie Big Disk 500GB Triple Interface LaCie Big Disk Extreme 500GB FireWire 400 and FireWire 800 Can anyone here provide any help making my decision? I will use it to store my iTunes music library. And since I am in the process of ripping almost 1,000 CDs in Apple Lossless format, it will be about 300 GB or so when I'm done. The Triple Interface one has USB 2.0, which might be useful if I ever decide to get a Network Storage Link for USB 2.0 Disk Drives, but I will normally be connecting to it using Firewire 800. How do these two drive differ from the one I currently own, i.e. what does d2 mean? And what is the difference between the two? The Big Disk Extreme claims to be faster than the Big Disk Triple Interface, but does that affect me as I am simply storing music on it? They are both the exact same cost, so I was wondering which of these features matters the most, or if anyone has had any experience with any of them. Thanks in advance.