Whats the one in the first pic? Looks good, I assume its right-handed only?
Its an
Intellimouse explorer for Bluetooth. It only comes with the bluetooth keyboard in a set. I got it for free when another MS mouse I had packed up (which I since repaired), and I claimed warranty under MSs lifetime guarantee. They said, have you been inconvenienced by this?, so I said you bet; and they said well send you a £100 Bluetooth set as compensation. 8-)
I think clearly its biased right handed but you could use it; the forward/backward buttons would be on the wrong side.