I was about to suggest them. They are super comfy, sound great, and are only $150 on Amazon.com right now. Pick them up with the $100 Schiit Amp (buy it online from the schiit site) for a total of $250 and you will have spectacularly good sound.
You'll need a 1/8th inch TRS to RCA cable to run from your computer's integrated/soundcard to the amp.
Later on you can add a DAC such as an audioquest dragonfly 1.2 or the $100 schiit DAC for even better sound.
Get on Win 10. MASSIVE WDM improvements. Things sound better.