TechNet Plus/MSDN OS?

I'm trying to decide between TechNet Plus and MSDN OS to evaluate operating systems and/or software for my organization.

Are all the OS's that are available through MSDN OS also available through TechNet Plus? That's the main sticking point for my org. on deciding which one to buy.

MSDN is designed for developers. AFAIK TechNet Plus will provide you with the same OS media (not the same App media), but you won't receive the same licenses with TechNet as with MSDN...

TechNet is a technical reference library and support centre whereas MSDN provides tools and assistance to software developers. Both will provide you with OS media for evaluation purposes

Cheers, Don

Can you tell me what the difference is between the licenses for the two programs?

I know the TechNet license is strictly for evaluation purposes, how is the MSDN OS license different from that?