Wireless keyboard and trackball?

I'm trying to find a wireless keyboard and trackball setup for my new iMac. Though they're certainly pretty, I'm not a fan of the Apple keyboards (I prefer the ergonomic keyboards) and I'd strongly prefer to use a trackball than a mouse (I've been using a Logitech Trackman with the thumb-operated trackball.)

Any suggestions for a Bluetooth wireless setup? I'm more focused on the trackball than an ergonomic keyboard, though an ideal setup would be a wireless trackball AND a wireless ergonomic keyboard. I'd use my current corded trackball with the Apple wireless keyboard, but there's no USB port, so that's out.

Any help GREATLY appreciated!