Can I purchase Office to use on both PC & Mac?

I've searched a lot for this and not found a clear answer.

Basically I'd like to purchase Microsoft Office. My wife just bought a Macbook Pro, and I only have an old 2003 version on my PC + laptop. Ideally I'd like to purchase Mac Office 2011 for my wife, with a license to use it on both my PC and laptop as Office 2010 AND with the option to upgrade to 2013 on my laptop & PC when it's released. Also, as an option, my wife is a teacher so is there an Academic price available discount somewhere?

Is what I want possible? I am pretty desperate, my wife needs to use Mac Office today and so I am under some heavy spousal pressure ;)

Thanks guys!