Are you not wanting to screw up your good GPA because of scholarships or because you dont want anything less than a 3.0? If its not because of scholarships, go ahead , take a couple C's and get your degree. Nobody will probably even care. Plus, it doesnt note your GPA on your degree anyways! Also, putting your GPA on your resume is about useless. Also, a couple C's wont hurt your GPA that much since youve got so many credit hours already.