I got one of these Logitech MK750 Wireless Solar Keyboard & Marathon Mouse Combofor the office. The keyboard is solar and never needs batteries, and the mouse supposedly lasts 3y on a 2AA batteries. So far, both are very responsive and have a nice feel. The keyboard may be a little cramped for those that like those big fat keyboards, but I like the ‘bare minimum’ on my desk, and it’s definitely a full-size board (arrow keys and numeric pad are in the usual places). No keys-nobody-asked-for-or-uses like application launch keys. The mouse has a nifty ‘fast scroll’ where you can spin it like the Price is Right to zip down a long document. If the battery life lives up to marketing hype on both, then I’d highly recommend them.