Memory prices has during the last weeks been going down like a stone, what I paid almost 160$ for just some months ago now costs 80$. That was a 512MB stick of RAM, you can also get 256MB for ca 40$, if you ask Crucial that is mind you that was PC2700 DDR prices, 2100 is even cheaper should you go that route, seems getting 1GB of memory and a Nforce2 mobo now would be a pretty good choice...