My university has virtually the entire campus covered in wi-fi, and one computer can access another computer's files through SHARED in Finder. Recently I purchased a MacBook Air as a secondary computer to my MacBook Pro, which sits on my desk with my backup hard drive pretty much 99 percent of the time. Would it be possible to create a sort of constant connection between my MacBook Air (which I will carry around campus to classes and such) and the MacBook Pro on my desk? This would be to access photos, music, documents that won't fit on my Air, but are already stored on the MacBook Pro and external HD. I can already access my MacBook Pro via SHARED in finder, but then I have to leave it on constantly. Is there a way to wake the MBP via wi-fi, get files that I need, then put it to sleep again? Is there a program that brings everything I've asked together? Thank you!