We are having an out of town speaker,James Kovacs, so make sure you make it out.
TDD/BDD with RSpec and Cucumber
RSpec and Cucumber are the bread and butter of Ruby development. Learn how to write Cucumber features to drive out high level system behaviour. Then jump down into RSpec specifications to test-drive out the actual implementation of the system. See how outside-in development can improve your code and keep you focused on the problem at hand.