I also gave the F700 a good hard chunk of thought and finally went with the F800 GS. Only have it now for 3 weeks. This being said it is my first adventure style bike and i too thought i wouldn't be doing too much off-road stuff. But now, i have to say this BMW just wants to go off the beaten path any chance it or i can get! I actually have to stop myself from going too wild before i get a set of crash bars!
I hope this helps your process!