I will be writing more problem-sets later in the spring 2011 semester.
If you need further help, I tutor throughout the spring 2011 at the Academic Support Center in math, science, and English. My hours:
Monday: 8AM-12PM bldg. 500
Tuesday: 12PM-4PM bldg. 500
Wednesday: 8AM-9AM bldg. 500
Thursday: 4PM-6PM bldg. 500