It seems like I've gotten rid of it... Ewido was a great help (took care of 32 crapware thingies), but couldn't deal with the main Vundo infection. I ended up using BartPE to get rid of the pmnll.dll (and llnmp.ini, pmnll.ini and some other variations... all +R +S +H in Windows\System32). There only seemed to be one ref to pmnll.dll in the registry...
Right now Norton is scanning the box...

Thanks all!