for a mouse i really recommend picking something similar in shape to what you have now if possible, I find adjusting to new feelings and shapes quite annoying, the mouse i use its a logitech g9 and I think its very good, also nice that it comes with two grips to pick from, for keyboard i really recommend a mechanical keyboard, I feel that they are much more tactile to use and you can find ones relatively cheap quite often, for example the razer blackwidow tournament edition







