tragicDave_vtableJust get the MBP, TF2 runs very well on OS X and the keyboard, touchpad and retina display are unmatched by other notebooks. You can also install Windows via Bootcamp, but it really isn't needed if all you're doing is TF2 (and you don't need anything that only runs on Windows, like the ESEA client).the obscene temperature issues are also unmatched
Put up the fan speeds.
don't forget to fix the thermal insulation:
http://cdn-static.zdnet.com/i/story/60/19/000201/macbook-thermal-grease.jpg