I am wondering if the mobos w/ Intel chipsets (i845E & i845G) are really worth $60 more than the sis 645Dx based mobos. I currently have a sis645 mobo and i love it. The only problem is the williamette processor running at 120mhz fsb, not being able to use all the bandwith of my samsung mem pc2700 overclocked to pc3200. Performance wise, i see that Intel chipsets outperform the sis clock for clock, but not that much. Also, the sis chipsets have memory bandwith to there advantage, as it could support pc3200 to push them above intel. I am considering to buy a northwood processor soon, but instead of upgrading my current setup, i could buy a new mobo to build a new system. So what is your take on the p4 ddr chipsets from both companies?