Dell :: M6400 Windows 7 X64 RC BSODs

Ran win7 on my M6300 for quite a while with no problems... M6400 just showed up and I can't seem to work it out. seemingly random BSODs that hit at any time. Analysis shows that the first one was caused by csrss.exe, most after that were caused by ntkrnlmp.exe,

Has anybody else had this happen and figured out which driver is causing the problem? Maybe I should ask "has anybody else installed win7 build 7100 64-bit on a M6400 and *not* had problems like this? If so, what drivers did you install beyond what windows update does for you?"

System config is:
Q9300 quad-core proc
4gb RAM on 2 DIMMs
3700M video
RGB-LED screen (if that matters)
64GB samsung SSD, 500gb WD 5400RPM HD (aftermarket) as secondary drive
verizon rev-a evdo mini-pci card
intel 5300 a/b/g card
fingerprint scanner

i think that's all the important parts...
the first bsod happened before i had installed just about anything at all, other than windows updates. i've been throwing just about every other driver i can find at it to see if i can narrow it down (with the intent of reinstalling from scratch once i figure it out). every time I think I have it figured out, I'll look over at it and notice that it is BSOD'ed or post-bsod rebooting.