Just bought Corsair HS1A on sale for $40 at Canada Computers:
http://www.canadacomputers.com/product_info.php?cPath=16_760&item_id=036119
Goddamn, Corsair has really upped the game. The BEST headphones I've ever owned/heard under $50.
Comes really really close to Audio-Technica ATH-A700. Really close! Of course, it beats Audio-Technica in my opinion cause it costs 1/4th of it and comes with a high quality mic.
Very comfortable too! Have worn it for 4 hours straight. Not a single inch of strain. I know I should've purchased HS1 instead of HS1A since it has Surround Sound but I prefer analog than digital i.e. 3.5mm than USB; and also because this one was $10 cheaper (I'm cheap!). It also comes with extra set of cushions if you prefer a different material.
It has a very minimal audio leakage, which is perfect for late night gaming when I don't want to disturb my brother. It also has a pretty long wire (which I LOVE!) and the quality is superb! Bass is also great! Battlefield: Bad Company 2 sounds mind-blowing with it!
TL;DR: ULTIMATE BUY FOR PC GAMERS FOR $40! BUY BEFORE YOU REGRET! Dare I say better than Sennheiser for that price?!