How to get an installation to play with?

This question might sound stupid. I wonder how I can get an installation CD of Dynamics AX so that I can play with the development tools. Does Microsoft supply it for the potential developers? I want to study it and get my hands dirty. Where to start out on my own? Is it possible? Do I have to go to the expensive on-site training centers or work for a partner?

I think there is a version on MSDN.

Technet has one also, including a Conotso VHD

Thank you for your replies. I checked on both MSDN and Technet. The Dynamics Virtual Machine Pack products were expired on June 7. There are no updates so far. I will download it anyway. Thanks!