This one had me going for a while.
I was minding my own business doing a MOSS install. I successfully created the Office Server Search Service and onto the creation of the Shared Service Provider. Created the SSP and MySite Web Applications and then at the final step of creating the SSP, it bombed out after a long period of time with an error.
Reason: Windows NT user or group ‘MyDomain\MOSS_Search.service’ not found. Check the name again.
