choosing a mobo

[fuz12]

right now i have a asus p5n-e sli which has a nvidia 650i northbridge and a 430i southbridge. would this mobo be able to run a stable overclock or would i be better off getting a new mobo. the ones i had in mind were the p5n32-e (680i), p5n-d (750i) and the asus striker 2 formula (780i). i am kind of reluctant to get the 780i because of the much bigger price tag but if it performs much better than i would probably get it. i have also read a lot that intel chipsets are better than nvidia. i am not too familiar with intel's chipsets. if there is a big advantage with the intel chipsets, could u list the intel equivalent to the nvidia chipsets?

here are my specs:
core 2 quad: q6700
zalman 9700nt
asus p5n-e sli
4gb ram 800 mhz
ocz stealthxstream 600 watt
2x 8800 gt in sli
wd caviar 320 gb
wd raptor 150 gb

thanks

 

[shadowthor]

If you don't sli, intel chipsets are definitely the better option. But since you already are using sli, go with the striker 2 formula, less issues i believe than the 680i.