Ideal Pentium M Passive Sink

[PoW]

Im looking for a low profile passive heatsink for a 1.8Ghz Pentium M. Its gonna be in a sff box that needs to be very quiet. I would like to avoid a fan however I understand that might not be possible. Anybody heard of anything that works? These .9nm M's are pretty cool runners so I'm expecting to get away with a lot.

 

[_Korruption_]

Just a random suggestion, but would one of these Zalman NB47J heatsinks work? Dothans run pretty cool, I've seen reviews around that use active chipset cooling solutions to do the job. Granted, with enough case airflow, maybe that Zalman chipset heatsink would work?