I am looking into a pair of open back headphones, but I don't mind looking at close can as well. I listen to techno, trance, dance, and softer vocal music. I just want something that good within my price range, I am quite unsatisfied with my past purchases Razer Megalodon and Nokia BH-905i. I also have the Koss Portapro. Currently, I am looking at Grado SR80i and Sennheiser HD 598. Quite a difference in price and I am not too sure which one has better audio quality for my taste in music. It will also be used with my computer, so I'll just add a mod mic by AntLion soon after I buy a pair of headphones. I am also interested into a sound card, PCIx interface for my computer as all I have right now is the onboard audio. I like RTS, RPG/MMOs, and some FPS type games. Do I need an amp for this setup, it would be nice to have a small portable one for my phone, Galaxy S II. I can spend around $100 on the sound card and amp. I believe anything more just wouldn't be worth it for me. I am really excited over the HD 598 for it's sound quality and well, it's design. However, I rather get my money's worth then a nice design. Edit: I do have some background noise, but it's not loud at all. My setup is in living room with my girlfriend that watches TV about 30 feet away with a wall of computer stuff between us. How clear will it be for her to hear my music and games sitting next to me? Would I bug her with my sounds? I used to use my Koss Portapro with my computer and that wasn't a problem at all. Need: -Headphones for $200ish -Listen to techno, trance, dance, and softer vocal music -What sound card should I get & AMP [within $100] Thank you for reading this wall of text.