[Bayron]

Hi, i'm actually new to the forum, wich i found searching for several headphones reviews, and it definitely cought my attention.
Now, my problem, as the title suggests, is:
I'm goin to buy some new headphones but i need them for my pc.So, takin into consideration that i'm stuck, at least for now, with the motherboard sound card (no dedicated one, and no ampli, obviously), it's pointless in my opinion to go past a certain level of headphones since i don't think i'll be able to fully use and appreciate them anyway.
By now i'm lookin at some AKG K271 MKII
But i'm really open minded about it, so any alternative is much appreciated.
 
Thanks, guys.

P.S. Almost forgot to mention, i play games with my pc, but i'm also a musician and a web content creator, so i would like the best audio quality i can get in that price range for editing, but also for the "Sit down, light up your cigarette and put on Dark Side of the Moon" moments, some audiophile will understand me . 

Preferences: 
Closed/Semi-Open Headphones
Over-Ear
No mic needed. I'll buy that separately.