This one looks interesting, and doesn't require travel.
Elearning Simulation and Games Symposium February 8-10, 2006 | Online
Based on the published agenda, I'd check out these sessions:
There are several interesting sessions on using Adobe Flash for elearning, and it looks like Frank Hanfland of safety-kleen will be updating and expanding his Macromedia MAX 05 presentation with additional information on ROI and business drivers for elearning simulations.
Registration is $495 USD for Guild members or $619 standard rate. Joining the guild for $99 is definitely worth it; you get discounts for their conferences as well as the online events, and access to the eLearning Guild library of polls, research and articles about elearning.