After looking into the CPU upgrades online I have found one that appears to be worth buying. At 6 cents/megahertz, I could get a 1.4GHz CPU upgrade for $90. What do you think about this buy? My main questions are: -What kind of performance increase will I see? -Would Leopard run well? -Would this help out my gaming experience on this machine quite a bit? Thanks for the help MR!