The good folks at Studica are offering a Cyber Monday (until Dec 6) sale on Unity 4 Pro licenses. If you're a student and you want the power of the latest version of Unity Pro, definitely check it out.
It also includes a copy of the Team License (essential for collaboration!).
(One Year License with Team License- windows/Mac Download)
-John "Pathfinder" Lester
Chief Learning Officer, ReactionGrid