Wife has a Gateway n52 laptop with Windows 7 installed. The sound is bad and I want to install a cheap speaker set.She does not listen to music and anything needing great sound but volume and quality as is, happens to be a little to much to bear. Question is can I install a USB speaker system on this? The laptop has no audio line in. Only thing on it is a head jack one for mic and the other for the ear piece. I am thinkig that a usb should just plug in and work? Any help? Thanks in advance..