This match up is gonna happen at http://en.wikipedia.org/wiki/UFC_137 Oct 29 in las vegas.
GSP is considered by Dana White (UFC president) as the P4P 2# fighter in the sport behind anderson silva.
If he and Silva keep winning, the dream match of GSP vs Silva becomes more likely!
Nick Diaz is a cool fight, but it would be a real shock if Diaz won, his striking is good but he needs like 20 punches to put people away, I dont think GSP will give him the chance to use it really.