Dan's Data has posted a review on A4 Tech RFKB-5 cordless mouse and keyboard
A4 Tech's RFKB-5 cordless mouse and keyboard set costs rather less than various competing products, but if you ask me, it's better. Perfectly OK three button wheelie-mouse. Keyboard with normal layout and some extra configurable buttons that you don't have to use if you don't want to. Long battery life. Low price.Read more
Oh, and surprisingly long keyboard transmit range. This is the first cordless keyboard that's forced me to use Pythagoras' Theorem to determine its range.