I forgot to mention: The sennheiser HD280s are pretty nice. I got the chance to hear some not too long ago: they're respectable.
Unfortunately, I can't comment on their "precision" or gaming performance, though I would recommend the audio technica ATH-AD700 and a microphone. They have splendid separation of sounds/instruments, and excellent soundstaging: I'd say they're the best I have for gaming.
You should be able to get them at Amazon, unless they've sold out yet again.