After searching for a while I found a reasonably priced Powerbook aluminum 15" 1.25ghz g4 on Craigslist. I ordered a blue tooth mouse, upgraded the OS to Leopard, installed tenfour fox and it's really a great experience overall, but the hard drive is slow. For example if I click a folder it will take a noticeable amount of time for it to display the files in it also it seems to take just a bit too long to boot up. Will upgrading the memory from 1gb to 2gb have much effect on performance? How difficult is it to replace the hard drive? I am looking for something cheaper and faster, but not an ssd drive (unless you can get one under 100 dollars, which i dont think you can). Any other advice regarding improving performance would be appreciated. Software or otherwise. thanks!!