How Do I Make An Old 2000 Computer Faster?

You could also try turning off programs that are hogging memory under the task manager (often there are useless things running you weren't aware of). Shutting off explorer.exe notably helps me out--you can turn it back on by going to start new task-> type in explorer.exe.

And I second Fiel's notion for a graphics card. When I got one it made a world of difference for maple (unlike you, however, I'm was lucky enough to have a pci-e slot).