Noise blocking headset

[Lighters]

I dont have a budget but im a cheap sod so
I'm after a headset/headphones that blocks out as much noise as possible but is still extremely clear with audio that doesnt have too much bass or too little.

The main use is for gaming in loud environments where i will be switching pc's
I also have an x-fi xtreme music sound card but since i will be switching take that into consideration.

Currently using razer barracudas that dont really block much noise

 

[Lighters]

when i say noise canceling i mean to stop me hearing people talking. Not fans on my pc, i mean pretty extreme noise reduction. Similiar to pilot/cockpit headphones etc.

I used some at LAN and they were awesome but they cost like £300-700 lol

I was hoping i could get some for say £40?