Bluetooth? Size restrictions? Most any Logitech will do the job fine. I have a bluetooth Verbatim for my Toshiba that's good and cheap ($15) though it won't do much good without bluetooth built in.
This is the mouse I got, though I did a case swap... And for some reason Amazon doubled the price. Mine was $14.81 with no MIR. It's a good mouse for occational use, but not nearly as nice as my Logitech LX6 and LX7 I use on my desktops.
I love Logitec mice, I got the MX620 because it is large, contoured, fits a mans hand better than other brands, and it has some weight to it. I've owned two logitec mice and I havent had a single problem with them.