700 is a little low, but when your car warms up it will idle a little high, right around 12-1300 rpms, then after its warm, it'll idle a littel lower at around 900-1100. You can always change your idle, it's a little flat head screw on the intake side of your throttle body. It really doesn't sound like anything to worry about though. Good luck with it.

Later,

Aj