Ok guys thank you all for your help so just to sum it up it looks like I have 3 options:
1. get Xonar DG sound card + Samson SR-950 or Gemini HSR-1000
2. get amp + Beyerdynamic DT770
3. get Logitech UE 6000 or ATH WS99
I know I should buy sound card in every possible scenario since my onboard card will be always problem. I just consider buying sound card together with either samson or gemini because they are cheap. And they both have velour ear pads which I think I would love since I stress so much about comfort.
Beyerdynamic DT770 was the headphones I felt in love with after I read few reviews, but I would have to buy amp and that still wouldnt solve my problem with crap sound source. Maybe one day Beyer, maybe one day :)
Third option is the one I am still considering because I like both headphones and from time to time I will be using my headphones with notebook and I love the fact they do not require amp. But there is still problem with my sound card and because I am looking mainly for comfortable headphones to use at home I think ill go with sound card + velour pads aka first option
Please feel free to correct me if I am wrong at something, I am new to sound cards, amplifiers and good headphones. All I have experience with is crap gaming headphones hurting my ears. Also if you can recommend some other headphones with velour pads I should look for, please do so.
Edited by Buro11 - 10/7/13 at 5:27pm