Well here is the link for those who want to start downloading the Crysis maps although I think you can get them off of the Crysis Servers when you log on also:
http://www6.incrysis.com/Crysis_Tournament_Map_Pack.zip
For those interested in the TF2 info check here:
With the links done I want to say I am glad they are keeping these free. To be clear this isn't meant as a shot at Halo 3 but rather at MS. I understand that they have their business model in mind where consumers get nickel and dimed to death but I still think they would fair better with a model that tried to include more people and provide unquestionably great value for their consumers. Or in short, take a few lessons from Crytek and Valve.