ya the 65nm chips have problems with alot of mobos unless you do a bios update - beware!
None of the EE versions are 65nm, only 90nm.
And I've never heard of them having problems.
Actually all of the released 65 nano products (The "Brisbanes") have the same power use rating (65 watts) as the EE vesions of the old 90 nano parts. - Most of AMD's 90 nano parts are rated at 89 watts, except for the 6000+ which is rated at 125 watts (I think)
The 65 nano Brisbane parts have rather higher L2 latency than the old 90 nano Windsor parts so in some games and applications actually perform a bit worse than thier 90 ano brothers of the same rating.
This difference is pretty small and it is unlikely you will ever notice it however.
I know they have the same rating, but since they're switching everything to 65nm they dropped the "EE" from the end of the 65nm parts even if they are 65w.