Those Dre's sound like shit. Really, they're like DJ phones at best.

Audio-Technica ATM50. Favorite of the live TV engineers. They're about 150 a pair.
Ultrasone Pro or whatever you can afford- for reference cans

http://www.ultrasone.com/index.php/en/products/pro-550.html
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I really wanted to go to that Bukake because I thought for sure that you were going to be on the receiving end. - Ryan Knox to Jeff Steward