Went for the Asus STX. It was one I was already looking at but felt initially that it would be overkill. But OMG, the whole PC world feels new to me again. Music sounds flawless and gaming, it feels like going from onboard GPU to a GTX780 to make a visual reference to the difference in quality. Everything sounds more authentic and realistic like you're almost there. The positional surround is hyper precise.