Well first of all..what kind of things do you plan on doing Ie: grphical work, games etc.? You dont' really need the 9700 if you don't plan on doing anything high end as far as grphics and games go. The 9600 would suit average work and use just perfectly. IMO even if you do want to do major graphical work and such the 9600 would do fine. If I was in youre situation, I'd go for the 9600.
~Elf~