I recently bought Audio-Technica ATH-M50 studio headphones. Highly recommend! Even with the music turned way down, I barely hear other people talking. If I don't need to be in hyper concentration mode, I use regular head phones. Amazon link to the Audio-Technica studio headphones-->
http://www.amazon.com/Audio-Technica-ATH-M50-Professional-Mo...
Oh yeah, if you look for 'recording headphones' you can find regular headphones rated not to leak sound. Apparently it's pretty important during recording sessions. I liked the look of these: http://www.extremeheadphones.com/
