I have a Creative Audigy 2 NX 5.1/7.1 DD/DTS/THX External USB Soundcard for sale.
A great addition to getting 24bit audio and 5.1 on a laptop or a desktop. Its in very good condition. Comes with all cables, updated drivers, and a brand new battery for the remote but i do not have the box for this
102dB Signal to Noise Ratio (front/rear/centre/sub channels)
96dB Signal to Noise Ratio (headphone and surround-side channels)
SPDIF input/output, optical digital input, optical digital output
Full Remote control
Support for EAX Advanced HD (in software)
Support for 5.1 and 7.1