It's difficult for me to imagine a woman lugging around a D700 + grip + 70-200 f/2.8. Ouch! You must have taken up weight-lifting somewhere along the way! I frequently use my D700 + 80-200 f/2.8 for shooting sports events and find that that combo is much as I care to tote around. At the end of an event the combined weight seems to be double what it was at the start of the event! I might go with a D700 + grip + 50 mm. f/1.8 but the chances of me loading up with a D700 + grip + 80-200 f/2.8 are small indeed. And my 80-200 f/2.8 is lighter than your 70-200 f/2.8.
I get the feeling that you are about to tell me that you carry both of your D700s at the same time!