Integra 9.1 (Onkyo's marquee brand) I bought in 2001 with the DTS-ES upgrade installed.
DD and DTS to seven speakers and a subwoofer. I was playing Oblivion on XBox 360 last night and an attacker tried sneaking up on me from behind and to the right of me. I spun around to the source of the grass being walked on, looked my attacker right in the eye, and then cut him down.
I LOVE surround sound gaming.