I'm in the same boat, waiting for my tax return. I did a quick google search for when it sold out last year, and the closest I can find(because I'm at work, and our filter blocks almost everything related to beer. Bleh) is a San Diego Beer Blog post from April 13 2011 that says that conference is ALMOST sold out.
I'm not saying this year it won't sell out quicker, but it looks like we have a little time.
They have been posting on the AHA forum that they are selling faster than they expected. Hopefully you'll get in before they sell out, or maybe just miss out on the banquet.
Rooms at the Hyatt are sold out for Tues and Wed, but they are trying to get more rooms at the Westin, which is connected by a skybridge.