chronic1972: The Logitech Cordless Freedom Optical is currently the best wireless combo you can get out there. However, as ukDave mentioned, any wireless solutions for your Keyboard/Mouse is ia waste of money since wireless has a slower refresh rate and thus if you play games like Quake3, UT, Max Payne, CS, etc (first person shooters) you will find yourself frustrated since the mouse and keyboard will not be able to keep up with your actions. However, if you are using it for just basic windows and office work, the wireless solution is fine.
I use all corded items on my gaming desktop, wireless logitech combo for my entertainment system, and a corded mice and keyboard on my workstation (since I like the responsiveness ).
Good luck.