Oh goodie!
I installed the latest drivers on saturday morning and got 2 BSODs. First the machine was sat idle (well downloading off steam, but that's not exactly taxing), the second was at some point after I had rebooted it, but I had walked away, either way it wouldn't have been doing anything, just sat at the desktop.
I rebooted again, played a few hours of World in Conflict over the rest of the day and it was fine. WiC is an old game though, so it doesn't push the PC all that hard.
So fingers crossed, since the 2 BSODs that may or may not be related, it's been fine.
The card is a GB 480 SOC...so yeah, hence why I am thinking it's this driver that did it.