The circuit will be played on HP Blackbird 002 computers, so I guess you won't have to worry about frame rates (that thing has 1 GB of VRAM). The competition will be 3v3, just like Blizzard's tourney. Only 32 teams will be allowed to register, and you need to have an account set up on MLG's site first; registration opens May 15. They say "more details on rules and the official format will be released on May 15th" -- maybe Blizzard will let them use a special tournament server? At any rate, it looks like Blizzard may have been more successful at turning WoW into an esport than we thought.