Okay, I have a 1.5 g powerbook running 10.4.2 w/ 2 gig of memory and an 80 gig hardrive, that used to smoke. it has slowed down a bit over the last year or so. I bought a 200 gig ext firewire 800 harddrive and put 95% of my personal files on it including my itunes library and many other large files I.E. games movies, other stuff thinking this would free up virtual memory and i would run faster again. It has not helped as much as i thought it would. I checked out Clix and Mac Cleaner but really don't know how to use them and fear I risk messing somthing up. I have been thinking about moving all my stuff to the harddrive including firefox, Windows media player and other aftermarket applications. I would then boot up to Disk utility and wipe the Powerbook HD clean, Reinstall OSX, the tiger upgrade and Microsoft office, and anything else, and move back the important files from the hard drive, making an effort to use as little of the Powerbooks HD as possible. will this help or not, or is there better way to go about this? thanks for any input!