Hell yeah
USB WIRELESS optical. It rocks. I have a RF wireless keybaord and mouse combo, and its great, I can carry the keyboard anywhere in the studio, the vocal booth, whatever, and start/stop sonar with it.
FYI, you can also use the USB wireless mouse as a PS2...it has an adapter. but PS2 takes up a IRQ as well as serial ports. I have both of my serial ports disabled, and my PS2 mouse port, so that frees up 3 IRQ's right there. That way, I use one IRQ for usb to run my mouse, my flash card puck, and anything else I wanna plug in.