SoCal Smackdown 2010 is still accepting preregistration for their events.
From their announcement:
This is just a friendly reminder that preregistration for SoCal Smackdown ends on August 20th – that’s less than 3 weeks.
If you miss the deadline, you can still purchase tickets at the door, but you’ll miss out on the opportunity to save yourself from paying full admission, and by preregistering, you’ll be able to reserve spaces for the games you want to play!
Don’t miss out! Sign up now.