Amazon.com has a Philips PSC805/17 Aurilium 5.1-Channel External Sound Processor for $34.99 with Free Shipping.
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- Plug-and-play external 5.1-channel audio processor for PC or Mac use n
- Connects to computer through USB 2.0 interface; 24-bit, 96 kHz processing n
- Dolby Digital and DTS decoding; compatible with stereo, 2.1, or 5.1 outputs n
- Runs on Windows 2000 or XP or Mac OS 8.6, 9.2, or OS X v.10.1 or later n
- 1-year warranty