The Siberia V2's are a great headset. Bass heavy, but i like that.
Problem with them is that after 3-4 hours your ears will start hurting because the headset presses on your ears (after they are broke in). But i have owned a pair for well over a year, and i still haven't found any fault with them other than that. My favorite part of them is that they use 3.5mm headphone/mic jacks, so i can 1. Actually use the sound card i invested money in, and 2. Use them around the house with my Tablet/iPhone.
Some great headsets are (I have used all these btw):
* Siberia V2 like stated above (what i personally own):
http://www.amazon.com/dp/B00365EA1Q
* Razer's 7.1 headset:
http://www.amazon.com/Razer-Megalod...&qid=1355776189&sr=8-3&keywords=razer+headset
* Logitech's wireless 7.1 headset:
http://www.amazon.com/Logitech-Wire...d=1355776222&sr=1-1&keywords=logitech+headset
* Turtle Beach's PX21's:
http://www.amazon.com/PS3-Force-PX2...55776257&sr=1-3&keywords=turtle+beach+headset
But do note i use to own the turtle beach's, and the build quality wasn't the best. I ended up blowing a speaker after about 6 months. So if your a "Audio stays at 100% volume 24/7" kind of person like me, i would stay away from these.
If i was buying another headset, i would defiantly go with razer's headset. Great sound quality, Great mic, Great comfort, and after buying my razer naga, i am officially a razor fan.