I basically very rarely used the number pad. And the full sized keyboard does not fit on my tray with the gamepad and the mouse also on the tray. I looked at the Warrior Xxtreme but the half keyboard design was just too radical for me. This
http://www.n52te.com/ really improved my fight cast reaction time and with the dual spec makes switching my keybinds as quick as clicking the mouse on one hand and clicking a button with my thumb on the other hand.