I am looking for Apple's magic mouse alternative, because I don't like the shape and mostly because it's too expensive. I'm looking for a mouse that would work with both Mac and PC and also that comes with a bluetooth usb stick and works both with it and without it. (I've got a PC without built-in Bluetooth so for that I need a USB Bluetooth stick and I've got a MacBook Pro with built-in Bluetooth so for it I don't need one). Any suggestions?