After seeing Ed Brill mention IBM's "Microsoft Alternatives" session in Manhattan next week, I decided to sign up for it.. or at least to attempt to. There's no online registration, so I sent mail to the listed address asking to register. No response. So, I tried again just now, and added a voicemail for good measure. Hopefully that will do the trick; it sounds like an interesting seminar.

Update: got the call yesterday; I'm confirmed, and looking forward to it. I don't know much about BinaryTree and their migration tools, so this should be a good learning opportunity.