I am currently looking into buying a new headset and am deciding in either the Astro A40s or the Tritton AX-720s. Which ones are the best and also if you know of any headset better than these and i dont care how much they are feel free to post the name here. And also i was in a game on MW2 and these guys were talking about some headset that you could like hear someone's footsteps accross the map but they were like $300, what are these? and I think they might have been the Astros but im not sure.