Up until about 30 minutes ago, I was set on picking up a pair of Denon AH-D2000 (based on head-fi reviews).  But after reading 10+ pages of reasons not to get them I am back at square one.  I have never purchased a pair of 'high end' headphones and unfortunately, have no means of demoing them.  Therefore I am relying on your opinons and experiences to make up my mind.  I do not have an amp but am planning to pick up an ibasso boa when I save up enough cash.  I currently have about $300 but would like to set aside about $75 to start an 'amp savings'.  I will however, dig into that if needed to get a better pair of cans.  The only headphones I know are in this range are the Denon AH-D2000 and Beyerdynamic dt770.  I would be open to an 'open' pair but I have heard that a lot of sound gets out.  I plan to use these in my dorm room and would like to avoid annoying my roomates. 
 
Source: Ipod 30g (re-recording my tracks now), Anyhting form oldies to hip-hop 
 
Thanks for anything you guys can give