[Skunkworks] Any server OS expert?

Hey party people,   I'm looking for a server OS expert. Someone who knows about Windows and Linux Servers at the low level i.e. not stuff like configurations and installations but the low level technical differences and capabilities that differenciate them. In addition I would like someone who knows about the cost of the servers (cost of purchase and/or support) and licensing restrictions that apply. Windows has costs in the website but their are licensing restrictions depending on the server.   If u know someone, please send me their contacts.   ORS (Or Nearest Skill) applies.   *~)