Cherry makes some nice old style keyboards (G80-3000 series, MX keys). A lot of gaming keyboard vendors use Cherry's MX keys. And if you prefer wired trackballs you could try Elecom. They have a few models in different variations (wired, wireless, for left handed). I got one of the EG-X series, the ball needs some wear-in, the additional key for low resolution is great for CAE, but possibly not suited for large hands.