Obtaining a part time job is a great way to get experience while you are in school. However, time management definitely comes into play when you are juggling multiple commitments. I worked during undergrad and graduate school, but mostly worked over the weekends. This allowed me to focus on my school work during the week. Also, I was very open with my boss; letting him know which days I was definitely free and which days I could come in if needed.
I knew several people that had on campus jobs for about 10 hours a week. That might be a good option, I would check out the library and computer centers to see if they have availability.