Hi,
I believe that GMAT is only an eliminatory condition. The way I imagine this process (and I have read about this as well), is a secretary splitting files based on GMAT and GPA. I have read that most schools don't accept GMAT scores below 650 overall, and I guess this is what the secretary is looking for. The qualitative decission comes afterwards and I believe a professor would be more interested to see research, focus in your career, determination, analytical abilities, than a GMAT of 700-720 intead of a GMAT of 690.
My advice, and I will do the same for my case: wait for your AWA scores - if they are below 5, then maybe it is worth it retaking it, if not, maybe u should think about this more.
What r your schools more interested in: quant, verbal, or overall? For ex. my score is low because of my verbal score (I am in the 90th percentile in math and 71th percentile in verbal). As I saw, 90th percentile in math, in my case, is a very good score. If I retake this exam, in November, then I would focus again on my math (where I believe I can score higher) cuz my verbal abilities are not very strong (btw, can u recommend me some good SC materials? It is frustrating to get a lot of wrong answers on this, and my problem is PREPOSITIONS....I don't feel them at all, to be very honest, although I spent 2 years in the US).
As for being an international student - if I remember well, u said u have a graduate degree from a foreign university - is that in the US? Cuz if this is the case, then you're all set. I would think that schools are looking for higher GMAT scores from intl students only bec they cannot interpret the student's GPA....
Be positive about all this - I am trying to do the same!!!
Keep in touch,
Mihaela.