Seriously, numpads are the bane of everything useful and good in keyboards. Why have that useless piece shit sticking out of the side of the keyboard right where you want the mouse? I'm not joking when I say I will never buy another keyboard that has an attached numpad on the right.
I currently use a Kinesis Maxim but I don't think it's the best keyboard ever. Yes, it has lasted over 12 years but it was really expensive and it's starting to fall apart. Many broken keys and the wrist-rests are completely broken-off and useless at this point.
MS Natural keyboards are nice but they are gigantic with that fucking useless numpad that takes up all your usable desk space. A numpad-less Natural would be really awesome (lol, like MS would ever do that unless it's insecure wireless crap).