In the same vien, has anyone used the Logitech MX1000 BT mouse? Or more directly the MX5000 BT desktop (keyboard included). I know there is no direct support for Mac, but it has been my experience that the Logitech products work fairly well without full support. You might not be able to take advantage of all the functionality, but...
I have the MX900 BT mouse, and could not be happier.
-Hobbes