I registered for O'Reilly RailsConf, but I can't make it, so I'm
looking to sell my ticket.

This ticket includes Thursday, the tutorial day and these 2 classes:

Thursday Morning Tutorials: Hands-on Rapid Rails Development with Hobo
Thursday Afternoon Tutorials: Powering AIR Applications with Rails

Opening bid is $400.  This auction is here:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170217291444

Thanks!
Matt Gregory