Hmm, you in college and have a laptop - chance are it's made by Apple.. Right?
If so, forget about outboard dacs - you'll have to spend at-least $170 to get any improvements
Audioengine D1 - Audioengineusa.com
What will improve the audio quality is different speakers/headphones.
Let us know if you interesting in following this route, your budget and we will give you few ideas and recommendations.
HRT makes good dacs (according to many) but they lack headphone amp..
I do have this behringer dac - it's ok, and it's an improvement over really crappy onboard dac which still ships with some computers, but it's does pretty mediocre job as headphone amp