Re: RAM usage
download a program such as freeRAM XP pro and that tells you how much is free and how much is used. If you want to slow down the computer then run norton or mcafee anrivirus with as much bloatware as you can find. That should slow it down a pretty good amount.
Desktop: Dell Dimension E510, 2.5GB RAM, Intel P4 3.0GHZ, 250GB HDD, Windows Vista Premium. Might not be the best, but the old girl is still running good.