[yoyorast10]

I mainly listen to pop and rock (majority pop), I've been searching around and heard about these:
 
HD 598
HD 600
HD 650
Fidelio X2
 
Which of these should I go with? I'm also open to more suggestions, my budget is $700.

 

[KG Jag]

Are you OK with open cans (they leak sound and don't isolate well)?
 
What equipment will be feeding and powering these cans?  Will you be using an amp?
 
What is the format of your music and other sounds will you be putting into these cans?
 
Describe the sound signature that you are seeking.
 
Do you plan to use them outside your home?  If so, in what way & with what equipment?