I'm also applying as a transfer; I already got into American University with honors, so now I'm patiently (sort of!) waiting for GWU to reply. My college GPA was 3.94 (with 36 credits) and my HS GPA was 3.96, both unweighted. My major extracurricular is full-time employment for about 6 months (I'm not currently attending college).
I also applied to Georgetown but I'm not as confident of getting in. Overall, the most important thing for me is financial aid, as all of these schools are great anyway.