Recently bought a Logitech V220 wireless mouse for use with a netbook and laptop. Bought this because I haven't found the trackpad on either device as comfortable or easy as using an actual mouse!!
Both devices use Windows XP, and the mouse - together with its USB receiver - was recognised and installed immediately.
Do please be aware: It's noticeably smaller than an ordinary desktop mouse, so may become uncomfortable with extended use?
However, it works beautifully on both my portables and, personally, I find it much easier to use than a trackpad, as - amongst other things - there's no more frantic scrabbling to get the mouse pointer from one side of the screen to the other.
Overall, it seems to respond better and be a more accurate option, so I'm naturally very pleased with purchase :-)