I'd suggest getting a good pair of open-backed stereo headphones and a separate clip-on microphone.
For example, for about the same price as the Roccat headset you could get a pair of Audio-Technica ATH-AD400 or ATH-AD700 headphones and a Zalman ZM-MIC1 clip-on microphone.
You don't need a 5.1 headset to experience binaural sound. And really, no offense, but in my opinon the whole 'let's pack three speakers in each ear-cup and call it surround-sound' approach is a bit of a gimmick, even though it does sort of work.
I used to use a pair of AKG K141 headphones, which I liked but wouldn't recommend in this instance. I then tried the Medusa 5.1 headphones but stopped using them after a while (several years
). Their overall sound quality wasn't that great and they used different sounding types of speakers for the front and back, which I found annoying. They were a bit heavy too and didn't really fit my (smaller than normal I guess) head, making them too loose and uncomfortable for me. I found the volume control on their cable a bit awkwardly placed too. They did give a nice rumbling vibration when listening to really bassy sounds though, that's the only positive I can think of. All in all, I'd never use a 5.1 headset again.
I replaced the Medusa's with a pair of Audio Technica ATH-AD900's which are much lighter and more comfortable, and the sound quality is better too. I can wear those for several hours before their contact points on a particular part of my (oddly shaped?) ears starts to get uncomfortable.
Some things to look out for in headphones-
Faux leather (leatherette?) ear pads. This stuff tends to get sweaty and break up and flake off, even on really expensive headphones. A soft velour-like fabric is better.
The impedance values on more higher-end audiophile-oriented headphones. Some headphones require more amplification than most computer sound-cards and portable devices can provide, and if they're under-driven they don't sound so good.
Open-backed or closed-backed headphones. Open-backed headphones have a more natural sound and can be more comfortable to wear, but let more of that sound out through the open backs of the ear-cups, and let more surrounding sound in. Closed-backed headphones don't let so much sound out and can in fact work like ear-muffs to block out external sound, but they are containing your ears in cups which can be uncomfortable and less natural sounding.
Comfort. I put comfort and sound quality on an equal footing. The best sounding headphones in the world will sound like nothing at all if I have to take them off because they're too uncomfortable. On the other hand, if they're so light and flimsy I can wear them all day without noticing them, they probably don't sound too good.
Headphones are one of those things where, if you can, you should try before you buy as there's just no way of knowing exactly what they're like otherwise.
At the end of the day though, if you can afford the Roccat's then you're out of the cheapest-nastiest-crap price range, so whatever you get will probably be fine. (Don't get the Roccat's though!!!! lol
)
Edit- Just had a look at the first page of the thread T.}{.O.R. linked to here -
http://www.overclock.net/sound-cards...-headsets.html and it seems we've come to some similar conclusions. Definitely worth a look.