It depends, are you 100% organic or do you have any mechanical parts? A pacemaker perhaps? If you use contact lenses, hearing aids, and a mobile phone you may even be a Fyborg.
Weren't the Cyborgs the baddies in an old Doctor Who series? I thought they were to be ressurected for this new series. So, Cyborg, how did you find "The Doctor?"
The bloke that elpresdentde is talking about is Professor Kevin Warwick of Reading University. He could be an absolute genius, he could be a total nutter, he could be somewhere in between. Anyway, plenty of stuff about his work here, if you're interested: