Asus 
Xonar HDAV 1.3 Deluxe Card:worlds first HDMI 1.3a compliant audio/video enhancement combo card the Xonar HDAV1.3. Capable of outputting uncompressed multichannel high definition audio from Blu-ray movies, the Xonar HDAV1.3 also enhances video with an onbo

Creative 
SB X-FI Xtreme Gamer :XtremeGamer sound card delivers faster audio performance and intense, realistic sound in all your games. Headphone surround sound is better too - so good, you'll swear you're listening to multichannel speakers - and your games will s

Creative 
SB X-Fi Titanium Fatal1ty Champ PCIe: You'll hear realistic EAX 5 sound effects and 3D positional audio so accurate you can locate opponents by mere sound, even over normal headphones. Plus, get unbeatable performance in your games with hardware accelerat

Creative 
X-Fi Extreme Audio PCIe

ALTEC LANSING 
VS2620 Speaker System

ALTEC LANSING 
VS4221 2.1 PC Speaker System w/ remote

Logitech 
G51 5.1 Surround: Bring your games to life with 360-degree surround sound. Your games are meant to be experienced in surround sound. Now hear your enemies sneaking up behind you, and listen for action in every direction.

Logitech 
Z-5500 Digital 5.1 Speakers: 500W Connects to PC's, video game consoles, DVD, CD and portable music players.

Logitech 
X-540: use FDD2 (Frequency Directed Dual Driver) technology to produce a uniform soundfield anywhere in the room. Immerse yourself in the game using the selectable 'matrix mode' which automatically creates 5.1 surround sound from common 2-channel stereo s