This is the mouse that I have:
Newegg.com - Logitech V470 Blue 3 Buttons Tilt Wheel Cordless Laser Notebook Mouse for Bluetooth
I like it because it's small and my hands are small, so it fits perfectly. It's not fancy since it's meant to work with my laptop. It does the job well.
My husband has a crazy Logitech mouse designed for gaming, complete with little weights you snap into it. While it is a great gaming mouse, I don't like it for everyday use because it's too big for my hand. You have to go with what feels right. I honestly didn't really pay that much attention to that until I got this laptop mouse.
The newer version of my husband's mouse:
http://www.newegg.com/Product/Produc...82E16826104318