Are there any keyboards that match the MS Natural Pro keyboard?

[TazExprez]

I want to upgrade one of my three regular PC's. The other two regular PC's have the Microsoft Natural Pro keyboard, while the one I am upgrading does not. I would like to buy a new keyboard for the PC I am upgrading. I wonder whether I should get the MS Natural Pro for this one, or some other keyboard that is equally as good. Thanks for your help.