Sign ups for the beta test of Star Wars: The Old Republic are now being taken on the official The Old Republic website!
Would be testers will be selected from the Star Wars: The Old Republic community by use of a number of factors including, age, region, and system specifications. You must be 18 years of age to sign up and you'll need an account in good standing at the official The Old Republic website.
The test will be conducted in phases, with smaller groups initially, and an intent to expand gradually as the test goes along.
If you don't have an official The Old Republic community account you'll need to sign up for one here (and be sure to check off that you want to test the game). If you've already got an account, well what are you waiting for!? Sign up for the beta!
A Game Testing FAQ is also available for viewing here.