Low-fi surround decoder for 5.1 computer speakers?

[tot]

Does anyone know any cheap solution to have a decoder that would take at least optical in (computer and PS3) and have 5.1 outputs for computer speakers (using 3 x 3.5mm jacks)?

I am looking something for the kids, thus I want to keep it cheap and the sound quality is secondary.

[Dorito123]

Sound Blaster - X-Fi, Audigy, Live!, Accessories

[jilgiljongiljing]

Sound Blaster - X-Fi, Audigy, Live!, Accessories

I don't think that device has an optical or SPDIF IN, it only outputs in digital, and has just a line In connection.

[Dorito123]

Yahoo! Shopping Search Results for DDTS-100

Sorry guys, its the first day with the new brain!

DDTS-100, Home Audio, Desktop Laptop Accessories items on eBay.com

[tot]

Unfortunately DDTS-100 is discontinued and hard to find. There does not seem to exist anything else dedicated to the task.

However, I found TRI-GA600 :: TRITTON Technologies, Inc. headphones, and the included audio controller seems to just right for the task.

[Dorito123]

DDTS-100, Home Audio, Desktop Laptop Components items on eBay.com