The Sennheiser MM50 iP headphones are a set of in-ears aimed at iPhone users. The headphones have a microphone and button built in, which will allow you to field phone calls and control your media player without having to reach into your pocket. The MM50 iPs are currently available for $99.95.

The Beats are a set of over-ear headphones created by Monster, with collaboration from renowned rapper, Dr. Dre, and are currently available for $349. The headphones feature active noise cancellation and detailed audio. They also come with a good set of extras, including multiple adapters and two cables, one of which has a microphone. These cords are detatchable, which allow the Beats to easily connect to a home stereo system, providing the user has a long enough audio cable lying around. For those who like portability, the Beats can fold up to minimize the amount of space they take up.

The Aurvana X-Fi over-ear headphones are Creative's entry into the world of active noise cancellation. Unlike many competing noise-cancelling headphones, the Aurvana X-Fis allow you to switch the noise cancellation on and off, and will let you listen to music even if your batteries are dead. The Aurvana X-Fis also feature a few filters that change the way your playback sounds. Despite these extra features, the X-Fis manage to be priced at $300, which seems to be the average rate of noise-cancellers these days.

The Ultrasone HFI-2200 headphones are a set of home theater over-ears currently available for $300. Their aesthetic is a bit different from the usual monochrome of today's headphones, but if you want under-stated and different, the HFI-2200s will meet your needs. The HFI-2200 headphones also have an interesting trick: they can fold up into themselves. This is great to minimize their size for travel, and also for DJs who want to mix with one ear.