The highly-programmable G300 retains major staples of gaming mice while lowering the cost of entry by $10. Palm grip mousers with large hands will find it a bit small, but those with claw grips should feel right at home.
With great ergonomics, decent weight to battery life ratio, dual wireless/wired abilities and other great features; the all new and improved Razer Mamba 4G is everything the original was and then some.
Mad Catz really has created a monster with their R.A.T. 7 gaming mouse. Its combination of custom fit coupled with a bevy of software and hardware features really does make extended gaming sessions even more enjoyable.