Ali, it put a smile on my face.
Zmatt, XP changes loads with having as little as 256mibs more than 1gib in there. It is all to do with how it sets it out, and thus makes the OS seem alot more eager.
Anyway, to the OP. The thing with buying 1Gib now is that you may think, aah this is OK and not bother with upgrading. If you have the money get the 2x 1gib sticks of RAM for dual channel.