[Swoop]

I agree with the above posters. Go optical and you will never go back. The Logitech line have always stood me in good stead, and start quite cheaply. I'm using a wireless Logitech keyboard/mouse combo. The mouse battery will last around 48 hours without recharging, but it uses rechargeable batteries and has handy recharging station that comes with the kit, and the batteries charge while in the mouse; I just slot the mouse into the kit. I've never really found that much of a problem using it, and I find wireless so much more handy with no corded restriction.

Personally, I've never liked the Microsoft mice or keyboards, but perhaps that's just a "me" thing.