Yeah is prob wot u want
It plugs in though usb, and has support for 5.1 audio. Its got a wireless remote, and also a function which turns a stereo input into a pseudo 5.1 output, dunno how well it works tho. Has loads of different inpuits and outputs too.
You can also use it as a dolby digital decoder for dvd players or an x box.
I'm looking in to getting one myself, there are loads of reviews for them out there, u can see one