real time Feedback. Possible?

My friend and I are going to make fighting bots, and we need to receive feed back that details data that they are cycling through during the fight.

I'm looking for something I can attack to my bots, and something I can attack to my computer.
Perhaps I can pull apart my wireless mouse and use those components somehow? ... ... ... actually, that's not a bad idea.
I can translate the mouse feed pretty easily.

If there is anything easier than that. Please let me know.

If there is anything easier than that. Please let me know.

XBees and XBee shields allow the radios to take place of the wires that the Serial class communicates with. You can hardly get any simpler than that. Cheaper, yes. Simpler, no.