I'm still trying to figure out how to use 4 gigabytes of memory. So last night, I started opening random programs. I had Black Shades, OpenOffice Writer, Battle of Wesnoth, Neverball, Neverputt, the task manager, and Chromium B.S.U. running. On 262MB of ram. Granted, loading a map in Wesnoth bumped it up to 300 something. Throughout the process, my CPU was very upset, but the music coming out of my speakers sounded pretty cool. Long story short, I don't see myself needing swap.
By the way, I can't tell if people took the first part of my previous post seriously.