Currently I have 2x 256Mb of Mushkin PC3500 Level 1 (@ 2-3-3). I've been thinking about upgrading to 1 Gb of RAM. I was wondering should I spend a lot of money and get another stick of 512Mb Mushkin Level 1 PC3500 (@ 2-3-3) or buy some cheap RAM with a CAS of say2.5 or 3? I'm just curious. I would like to have the matching RAM but it's soooo expensive right now. Thanks for the help!