hey can anyone comment on some universities in which you can take online classes to meet a few courses that you have not already yet completed?

Depends on what courses. I wouldn't take anything past a freshman-level online.

Many upper level courses require laboratory...or at least the lab will be beneficial to your understanding the material.

Tryinghard
What courses are you trying to take through the computer?
I once did that for Nutrition, but that is not a tough course.

You should check with the colleges in your area.A lot of colleges offer on-line or distance courses.But I would be weary of those "get your degree on-line" ads.
For instance the campus here offers a lot of the history,govermment etc courses thru distance or on-line.But when I have to take say my cellular physiology class that is not a course I will be able to take on-line.What course are you trying to take on-line? Are you already enrolled in classes?