How do you all like Sennheiser's PC350? Based on the specs, they seem nice. There's even a mod (http://www.head-fi.org/t/406187/modding-the-sennheiser-pc350-headset)
to add more bass.
They're a bit dated, but it seems like a good contender. For gamers, the two major complaints are the lack of bass out of the box and requiring a headphone amplifier to get decent sound quality.
I've owend the pc350s and I wasnt that impressed by them.
I will say a few good things about them however: The build quality was very good, very sturdy, and the sound was crystal clear (good for competive gaming for hearing voices and footsteps etc)
However, the sound lacked any "meat", too lacking in the bass, sounded a bit tinny. Evan running through a ASUS Xonar D2 soundcard they sounded average, for the money I expected better sound quality, especialy from Sennheiser. If they where priced slighty cheaper then they would be a better buy.
Personally I like a pair of headphones to add to the immersion, which the pc350s didn't.