Sennheiser is well known in the slightly more budget-conscious wing of the audiophile community for selling great headsets at prices that won't drop your credit rating by more than a few points. Of late the company has been making waves in the gaming community as well by throwing microphones onto those cans, and now four new models are shaking the pool even more. First and biggest is the $299 PC 360, available overseas for a few months but finally hitting the US and building upon the success of the PC 350. It looks to borrow the open design of the company's well regarded HD555 headset, adding a mic on the left that mutes itself when you pivot it up and a volume dial on the right. The $239 PC 333D model offers a similar design but with more isolating closed cups, mixing in pseudo 7.1 Dolby Headphone, while the $169 PC 330 looks much the same minus the faux surround. Finally, and smallest of the bunch, is the $209 PC 163D, which again offers pretends at 7.1 but in a design that might be a little more... flattering for gamers with smallish heads. None is exactly affordable, but all should rock your world, and all are available now.