I had the same problem wondering what to do with a keyboard, I ended up dropping the whole keyboard into the left hand side of the pit so I could just move the one on my desktop out of the way and use the centre-mount Warthog.
My original plan was to have a CDU, but in the end I kept the keyboard mentioned above and removed the innards from my old G15 keyboard, this allows me to call up any airfield layout with co-ordinates and radio frequencies using an applet and I also utilised the orange LEDs to create an orange hue on the left/right side so the keys can be seen without being too bright. The keyboard in the pit means that I also decided to scrap going for an A10 pit but have created a hybrid which can be used for pretty much any platform/helo.