Vim for Rubyists
Ben Orenstein is a Ruby buddy of ours in Boston who is teaching our vim training on Friday afternoon/early evening.
Check out this video he made giving a few suggestions for reaching vim mastery. I think you'll find Ben is a good teacher who thinks deeply about how people learn.
It's not too late to register, and you have ample time to register for the next session in September. Hope to see you there!