ive heard u cant overclock the new amd's too much so is a safely overclocked 2800 better money wise + performance ? i know the 3200 64-bit will beat it, but is the 300$ more worth it? also can u put pc3700/466 or pc4000 ddr ram work in a mother board made for ddr400? i cant find a Mobo that will work with that type of ram