[third_eye]

In no particular order:
HD600/650
DT880
AKG702/712
HE400
Mad Dog
MDR-7520

 

[EazelWeazel]

I've got Sennheiser HD25's. They're awesome kit: light, clear and really comfortable. I use them for DJ'ing and can keep them on all night without any fatigue. the only thing I might change in the future is the pads and go for some velvet ones. I've seen some pretty cool customised ones too, for that bit of individuality.

 

[FrZ-Fi]

Momentums are fantastic for what you are looking for in my opinion

 

[Bobby123179]

I actually just purchased the m-100's a couple days ago and they'll be here soon. So I'll let you know how I like them!

 

[Hapster]

Maybe look into the denon d600. I picked up a pair for $240, but they're portable, isolating, and a lot better than momentums or d2000.

 

[Androb]

Easily the momentums. Such a good sound sig.

 

[loveislove]

HD600s are great cans at this price range

 

[GeneraI]

I think all the good sub $400 cans have been already mentioned. 

 

[zorin]

  I think all the good sub $400 cans have been already mentioned. 

No. 
ATH A900X / A900X LTD

 

[DisCHORDDubstep]

The JVC HA-M77X's. 100$. Look up the review on here.

 

[Dabblesinsound]

Where does the ma-900 rank with the previously mentioned headphones, especially the x1? I know they have a pretty flimsy build on them, but what about head to head sound quality?

 

[nicholars]

SRH 1540, Denon D2000 (used), Momentum M2, HD650, there is some for you to look into, your post is rather vague.

 

[nicholars]

Maybe look into the denon d600. I picked up a pair for $240, but they're portable, isolating, and a lot better than momentums or d2000.

 
If you like them no problem... But imo (and 90% of other people) the D2000 and Momentums are better than the D600 so that is a bit misleading.