SSF4:AE is available for pre-order at Steam for $39.99 and Direct2Drive for $35.95. There is 10% discount available if you had previously purchased regular Street Fighter IV for the PC. There is also another discount available if you wish to purchase 4 copies of SSF4:AE which would drop the price down to $29.99 a copy or $119.97 total at Steam. The release date for PC is early July.
The console downloadable content (DLC) release date is June 7 for $14.99 or 1200 Microsoft Points. The disc based version will be available in Europe on June 24, in North America on June 28, and in Japan on June 30.