HP has the Logitech X-540 5.1 speaker system for $75 with free shipping. Use coupon code AC1874 to knock $15 (10%) off.
Features:
* Produce a uniform sound field anywhere in the room and eliminate uneven response and hot spots created by conventional dual driver designs with the Frequency Directed Dual Driver (FDD2) technology
* Automatically create 5.1 surround sound from common two-channel stereo sources with the Matrix mode
* Clip the center channel speaker to the top of most flat-panel LCD monitors
* Rotate the satellite speaker stands for easy wall mounting
* Maximize bass response while minimizing distortion with the dynamic, real-time bass equalization
* Displace more air for deeper bass with the high-excursion, ported, down-firing subwoofer
* Easily access the master volume, subwoofer level, and matrix button on the control center
* Listen privately to music and games: just plug in headphones
* Get questions answered toll-free, 24 x 7, or via e-mail in as little time as an hour
* Warranty: two-year limited
X-540 - From HP Direct - Compare Prices, Reviews and Buy at NexTag - Price - Review
Logitech X-540 5.1 Speakers System $60 + FS 
