I've owned a few "high end" gaming headsets including the Sennheiser 350s, Sennheiser 360s, the Corsair Vengeance 1500 and 2000, the Razer Tiamats (among others) and I've returned them after a day or two for a refund.
I prefer a good pair of stereo headphones with a clip on/desk mic. Much better sound quality, much better mic quality for a lot less money. Don't go for the gimmicky stuff, its overpriced garbage.