From Autodesk:
Go to the registration page, choose your country from the pull-down menu, then continue to fill out the form."
Now, go to the Autodesk Student Community and start using Revit for FREE!
Also, Autodesk 3DS Max and Maya were always 30 day trials for students... not anymore. Head to the Student Community and you can download Maya and 3DS Max for 6 month trials.
Finally, Autodesk has added a "Sustainable Design for Architecture, Engineering, and Construction Guide."
"The Autodesk Sustainable Design Guide illustrates sustainable design principles and technologies for every phase of the project life cycle – whether new construction or renovation. Decisions made early in the process can deliver significant results when it comes to the efficient use of energy, water, materials and land in a final project design. Using this guide will help you better understand which decisions are critical – and what steps to take to create and deliver more sustainable designs.
You Will Learn...
What decisions impact the sustainability of your project
When to make those decisions
What tools and information you need to inform these decisions..."