nuts to the mx700.....wireless be damned! I'm sure the MX700 works well for wireless, but I just don't want wireless....I don't trust it, heh.
But I must say, logitech has the right idea in making a wireless mouse with a base that recharges it. Definately a step in the right direction.
As for the keyboard, it IS an excellenet keyboard. I have the CORDED Elite keyboard and the MX500 mouse, which is the CORDED version of the MX700......they both are excellent and is a nice combo for gaming. The only thing I don't like about the keyboard is that it assignes the F keys stupid shortcuts for e-mail, printing, "my computer/documents/pictures/music" etc.....and I didn't install the software for the mouse or keyboard, so everytime I start up the "F-Lock" is off....and the F-Lock is what makes them act as normal F keys....so if I forget to put the F-lock on and I play battlefield, I'm starting programs instead of using communication, lol.
All I can tell you about the MX700 Duo is that their CORDED counter-parts are beyond excellent. I know for a fact that the only difference between my set and the MX700 duo is the cordless...otherwise they're identical. So if you want cordless, I think the MX700 duo is your best choice.