i'm also getting bsod's, which mostly seem to have memory-related errors, like page file faults, that sorta thing (i'm assuming those are all related to system memory).
i've used memtest to test my system memory, and it came up with no errors.
all of my drivers, including the 4in1's and the bios are fresh (again) as of yesterday.
i talked to a local computer store guy i kinda know, and he seems to think it's a problem with the video card getting "out of synch" with the system, so the system burps to re-synch. i was thinking about manually setting the card down to 4x or something, but i'd rather not do that.
oh yeah, it's not an nforce, it's a via kt400/vt8235 abit (at7-max2).
i've tried it not-overclocked before, but i'll turn it back down again see what happens.
i know i just need to test everything seperately, but i don't have another machine at the moment to try it in

. i will probably be buying a new one soon anyways, so if i don't get it resolved by then, of course i'll start swapping things out.