This is what I'd do:
1. Add dates for your education (ie. 1999 - 2003) on the same line (right aligned) as the university, and then remove the lines for date of [expected] graduation.
2. Remove "environments" because that's useless IMO (it's better to say where/how you used Linux/Unix/etc. in your jobs). If you want, put in "Applications" or "Software" and put those down
3. Delete "Selected"
4. Reformat your work experience section - I don't know why, but it seems kinda hard to read to me.
5. Right-align all your dates (they seem hidden)
6. Only adjust margins outside 1" norms if you need room
7. Delete "intense" under your 1st bullet of last work experience to keep it at one line
8. Sometimes its good to explain the "how" to certain things (ie. HOW did you assist students in becoming more efficient team players?)
9. Delete the last section and put "References available upon request" on a line by itself.
10. MSU Honors College Student seems redundant to me since you have a flawless GPA
11. Do you have any activities that aren't academic? Varsity sport, volunteer work?
I can prob come up with others