Well i ended up with a used Asus Xonar Essence STX. Maybe not the best choice on a gaming rig, but it was cheap and and don't use anything else but my headphones. One problem though. I don't have any 3.5mm to 6.3mm adapter which is needed for the headphone plugin, and i don't think i can get hold of any before this weekend. So my question. What is the different between using the Front R/L out port with the 3.5mm to RCA cable and only using the headphone out port?