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I think that the only keyboard/mouse combination I would change mine for right now is this one . Wireless and natural, me likes!
I can’t really do without a natural keyboard now (I have one at work as well as home after some persuasion). Microsoft mice are also more comfortable than Logitech for me. The only way up is wireless, I guess. For now, however, I think I shall stick with my wired versions… Wireless is so tempting though!