How to Get Started with SDL Tridion

How do I get started with Tridion development?
I've seen this question on Stack Overflow and Linked-In. If you'd like to develop with the SDL Tridion CMS, but don't have a license, see your options in order from the most-to-least costly:
*If I do know you, you know me, or I'm not eligible for a corporate referral bonus when you read this, replace my name with another employee, using the popular work-related social networking site at the time (Linked-In as of November 2011).

Update Nov 6, 2012: Added training as an option to get started and removed "development." It helps to be technical, but not all Tridion work is technical.