logitech wave works for me though my apartment is not big but i am typing this from the back of the kitchen.
My place is 50ft deep x 25wide and the TV and therefore the receiver, are located somewhat centralish so I am getting maybe twenty feet of distance here. Two walls are in the way and a fridge/maybe the stove as far away as i can get. If this actually types up then i will post as I can't even see the tv... (totally useless exercise, but why not find out if this works).
I got mine at office max with a mouse i do not like (too light, but you may like it) for $70, no rebate needed. They have it at the egg with a rebate for that amount.
Link @ egg