I use sennheiser PX 200-II and they are really goood. especially for electronic music <3 i like its form (hate biiig headphones) and their sound.

Even the low budget Sennheiser headphones sounds way better than that shitty modern MonsterBeats (no offense). Seriously, Sennheiser is the way.

HEADPHONE INFO I would recommend you to research for frecuency responses of diferent headphones in this page, it will help you to know what headphones gives the sound you want (for me, I like some nice clean boost in bass for music (no notable peaks at <1000Hz), and plain response for working with sound or playing videogames)
Just be sure to not buy the Sennheiser HD 201, they really sounds like shit and the next "tier" of Sennheister hphones (HD 202) sounds really powerful for 35 bucks plus they are lightweight and comfortable.

I actually have that Roccat Kave headset... and it's really great! :3

the 5.1 sound is not as good as with a big set of speakers but decent enough and you hear almost no outside noises when wearing it.
keep in mind that you need a 5.1 soundcard (3x 3.5mm jack for sound + 1 for mic) to use its full potential...

Selecting Headphones depends on your music tastes and if you will use them for alot gaming or just music or both.

Also its best if you go for "headphones" and not "headsets", as the sound quality of the later are not as good.

I can recomend you to read the following link as is provides alot info I looked when i was selecting mine Most Recomended Audio Products

Very important and copied from the link above " You can buy the most expensive headphones, but unless you have a good DAC/AMP to truly drive those headphones to their full potential, then you just have a mediocre pair of headphones. As the saying goes: Crap in, crap out"

Skullcandy Hesh i bough those a while ago and damn there good there only like $70 or so and there amazing for the price.
If you want gaming headphones theres a new Razer Kraken Pro there also really good and i think $80 for ones with a mic.

Razer Megalodon Here you go they are really good headphones and I even use them myself, They are comfortable up to 24 hours.

monsterbeats

Steelseries Siberia V2. It's what I use, and they are awesome.