OK, If you've seen the ULTIMATE GEEK FEST that is Doctor who, you'd know the two robots that are out to get us!!!!
The Daleks that don't stop till EVERYTING THING IS EXTERMINATED!
And the Cybermen, that do not stop till everyone is turned into a cyberman.
Well...Witness this awesomeness...DALEKS VS CYBERMEN!
http://www.youtube.com/watch?v=RYARnv2FFso