BSOD with minidumps attached

[nosleep]

I need some help with some BSOD's I've been having. Minidumps are attached. BSOD's used to be few and far between but I just received 5 yesterday. Also just to add, I gamed for 5 hours straight last night with no problems and as soon as I exit out to surf the net and check my email, five minutes later I get a BSOD.

e6600 3.4@1.4v 65 degrees on load
7900gs oc'ed 72 degrees on load
ASUS P5N-E SLI (Nvidia 650i chipset)
2gb ddr2 PNY 667 4-4-4-12
Thermaltake 450w PSU all voltage within 3% (measured with digital MM)

Any help would be much appreciated!
thanks,
nosleep

 

[nosleep]

*Fixed* ...so far...

Just an update for anyone not getting assistance, this is how I solved mine:
I downloaded Windbg (sp) to debug them myself.
I found a USBPORT.SYS and Nvidia ethernet driver fault in the dumps.

I then uninstalled my recently installed Dell photo printer and installed new Nvidia chipset drivers.

No BSOD's in 19 hours and counting, including 5 hours of continuous gaming.

Now I'll have to find a stable replacement driver for my Dell photo printer.