I also got sucked in by the wireless keyboard and mouse that, as has been well stated, literally "Eats" BATTERIES ALIVE! However, I recently bought a Microsoft wireless laser mouse 6000 that has four separate buttons plus a wheel. All of it works like a charm on my Dual G5 Tower and gives very long battery time. And, I am not a Microsoft fan; the only system for me is the elegant solution provided on the Mac using OSX!! w Thompson