I am going to be getting my first quality headphones soon (akg k550)and I was wondering what soundcard I should get. I have 2 pci-e x16 slots in my pc open, so I can put any kind of card in.   I will be using it to listen to music and play games.   What would be the best choice for under...

I am thinking about getting the Pioneer SP-BS21. It's pnsale now at amazon for $80   http://www.amazon.com/gp/product/B004MEWZE4/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=AZCEI3EMXUPTH   I currently do have an amp so I was thinking of getting the LP-2020A  ...