When I got my MacBook, I stupidly thought 60GB would be heaps for my uses. Now i spend a day of every week cleaning old stuff off to accomodate new data, and I have some data spread on to the 80GB HDD which came out of my iMac (I have a case for it). Some of the data on the external drive would be great to have with me all the time, but it's a pain bringing the cables with me (power and a long USB cable). So, I was going to get an external 2.5" HDD, as they are bus powered, and a lot more portable than the 3.5" HDDs. 1. If i buy a HDD from Lacie or another brand, could/should i take the HDD out, put it in my MacBook, and put the MacBook HDD in the case? 2. What I/O port (USB/FW) is better (faster, more reliable, etc.)? Is USB bootable?