[Suggestions 4] Good headphones, no sound leakage??

I'm using this headset: CLICK MEEH!

And I must say that I'm very satisfied. I know a lot of people don't like Logitech and say it's shit, but I got these and I can tell that they just sound awesome. My sister once visited me and wanted to play, I said that she should turn up the volume. I started to hear what she's listening to at a higher volume level, but I had to start to kindof scream to make her notice me, so the volume was set pretty high.

In games you just hear everything, things, you didn't know they were there before. So the Dolby Surround 7.1 sound is really good.

If you want to know a bit more, just ask. (If you didn't find everything you need in the link already)