Would you replace your numeric pad with a trackpad?
stcredzero: I would like a trackpad like the one on the new MacBook.  You could even print it with a numeric keypad and make it dual-use.  I like using a keypad for entry, but I only need that occasionally.  A trackpad would be more useful.  Even better: also replace the arrow/delete/home/end cluster with trackpad gestures, or trackpad + special lefthand key.  This would make it much more convenient to my right hand and save space.