I've been using this keyboard and mouse combo for some time now, and overall I'm quite satisfied.
The keyboard itself is very soft on the touch, and makes for incredibly easy typing. The mouse is comfortable, but lacks the side buttons often found on other logitech mice.
The bundled software is good, though often gets annoying when it insists on telling you that your batteries are running low several weeks before they eventually run out, but it does allow you to customise many shortcuts to your favoured programs.
By request: This keyboard costs between £50 and £60 depending on where you get it from, and is incredibly easy to install (providing the connection doesn't play up!).