I now (and for as long as I can remember) use my very solid Mx510 Logitech mouse and well I don't even know the type of Logitech keyboard but I bought it at the same time as the mouse, so yeah I think it's definitely time for an upgrade
Currently I'm running my formerly fantastic GTX 760 but with newer games always being more and more demanding, my fantastic GPU is starting to become not so fantastic. So this upgrade would be amazing!