This is the one I have now (upgraded from the Sennheiser 320):
http://en-uk.sennheiser.com/gaming-headset-gsp-300Sennheiser GSP 300, 301 and 302 are all the same product, while having different colours.
300 = black-blue (I have this, but black is sexier

)
301 = black-white
302 = black (apparently not available yet)
Sound is really crisp and clean, bass is there, but not exaggerated. You might be familiar with the microphone's quality from hearing me on TS. (It's very good imo)
Headphones are semi-noiseblocking and not uncomfortable when worn (to me).
I can recommend this one, actshuly.
No idea about other headsets though.
Edit: Hmm, looks like it's above 90£ on your regional page. Mine was under 90€ afaik. (Notice currency differences)