I've never played Call of Duty Modern Warfare before, but was wondering if Black Ops is really worth buying. For those who already have it, is it really that good? I like FPS games like Counter-Strike, Day of Defeat, Left 4 Dead 2, and Quake Live. And if I went to buy Black Ops, should I also get a PS3 gaming headset like Tritton AX 720, which seems to be overpriced in Canada from Best Buy at $169.99. (Worth that price?) If not, should I just continue playing the games I love already and get a SteelSeries 7H USB headset for my mac? And is using a PS3 controller to play a FPS console game much harder, compared to using a mice and a mousepad?