to start with linux on a server.
In Europe, *most* schools don't have more than 20 computers. But you could create pools, i.e. one sysadmin for 10 schools.
That's a good idea. an education service provider would be exactly that but that it's a commercial entity.
The school I'm talking about has about 240 computers today. - They are already working on getting a second class-C network. (can you imagine what this means for a single admin? :) )
[Application/Education Service Providing]
Well, if you can meet the requirements of the FSF (free software), that'd be interesting. But I don't think that the FSFe can help with servers and stuff.
The FSFe can help. - The FSFE can propose such a model and tell everyone (e.g. existing consulters, outsourcers, and schools) about it.
This can also become a source of revenue for the FSFE. - To get their infrastructure checked and certified they have to pay for the time a volunteer works on it. (Maybe he can also get paid for this)
You just have to be creative. :)