I have a LaCie 160 GB d2 Hard Drive Extreme Triple Interface and I've been looking to purge it and do a full format (it is currently formatted Mac OS Extended; I want to make it Mac OS Extended Journaled). I have couple of questions about fully formatting an external 3rd party hard drive. 1) Is it a good idea to fully reformat a 3rd party external hard drive (to something different from the factory default)? I've heard that can cause issues with the drive (fussiness, burning out faster, etc.). 2) It's a 160 GB drive but when its empty I only have 149GB of free space. I know I can't get the full 160GB but will fully reformatting it give me some (at least a few more gigs) of space on it? I appreciate the help.