sky, im all that up on computers but i have one idea !!!!
does you keyboard have a usb plug ? if so have you tried pluging that in to a spare usb port (if you have one spare ?)
if that doesnt work maybe you could borrow a keyboard from someone and check its not just the mouse and keyboard deciding to give up the ghost together !!!!!
sorry if that sounds dumb, but like i said im not up to date with computers just now..............

good luck sky

dec x0x