sorry for all the n00b questions recently, but i'm reading around the board, and i cant find anything that specifically answers my question so i'm afraid i'm starting another thread. i daresay i'm comparitively not the worst offender ever! i was working away on my powerbook last night, putting music into itunes, chatting away on MSN, browsing the web, with thunderbird and mytunes running in the background and it was seriously slow...like to the point of almost grinding to a halt. skipping a track in itunes was just out of the question. from reading around on the board, i've noticed that OSX does its own scheduled defragging...cool. but i've also read that fragmentation on a MAC OS hard drive isn't really a thing to worry about, it's file ordering i should be worried about! as i understand, this can't be done whilst the OS is running, it has to be done at boot. what kind of apps am i looking for to create a boot disk to reorder my files, and perhaps some 3rd party defragging (hey, i'm from Windoze....we just loooove to defrag - it answers ALL our problems!!) just to set my mind at ease!!!