I have had the logitech bluetooth mx1000 keyboard and mouse set for years upon years. A month ago i replaced the keyboard with a logitech solar powered....awesome i must say. Now my mouse is finally crapping out. I am torn between getting a razor mamba, the logitech g602, or one of the rechargeable R.A.T. series. The upper end adjustable ones because i have rather large hands. Anyone who has used these please leave some comments. All the reviews i read are so up and down its hard to decide a clear winner.