I used a wireless logitech mouse, similar to
this, (different receiver) note the 2,4ghz wireless, worked really well for gaming, actually. Since it broke, i've been using either a really cheap and crappy wireless mouse or a half-broken, cheap wired mouse. Both suck really hard in comparison, but i can play.
Dunno about lag, but corded mice feel uncomfortable for me when gaming, the cord seems to get in the way.