Okay, I have a 1.25 GHz G4 running OSX 10.4.8 with 256 MB of RAM and 584.7 MB of space available on the HD. This thing is DOG slow. When I switch from my Safari to PowerPoint it beach balls for 10 to 30 seconds. I usually like to have Safari, Mail, iTunes, and one other application open (PowerPoint or Word mostly) while I'm working. So, I know that the RAM is probably dogging me down big time. How much should I up it to? Also, is my lack of HDD space slowing me down (it has told me my startup disk is full)? What do you think I need to do? Also, what could I do that cost the least because I'll probably be done with this computer next year when the have they back to school computer/iPod deals.