Thanks for posting. With regards to a GMAT score, it really depends on the business school you are aiming to attend. You should look to score at least the average GMAT score that the program reports. Are there any particular business schools you are looking at?
To answer your other question, as you progress in your career your work experience will become increasingly more important than your undergraduate record. However, you may also want to address your GPA in your personal essays. Here is a case study of a candidate with a sub 3.0 GPA who was accepted into both Columbia and Chicago Booth:http://www.stacyblackman.com/comprehens ... ies/case5/
Hope this was of help.
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