I actually consider buying a shure se210 headset (I should be able to get some for around 75€, which is far below any great headset), for everyday life but mostly for gaming (and buy a mic that can be fixed on its cord).
But well, even though everybody praises its sound quality, I still wonder if the reduced bandwidth (only from 22hz to 18.5 kz - while sennheisers hd5*5 headsets have easily a bandwidth over 28 khz), and the fact that it is directly inside the ear could affect the gaming experience. (I already tested some sony low quality in-ear ones, and could wear them all day long without a problem - but it was a for music, not gaming :))

Any experiences to share ?