2nd vote for a G7 here, just as good as a G5 except there is no wire snag
the batteries only take 2 hrs to charge (they last longer than 3 solid days of use, so you will never have problems), and the coolest bit is you can change them mid-game like a gun magazine
(I think that was Logitech's idea)
Oh, and its much MUCH lighter than the mx700, but the same shape!