Originally Posted by Christmas Lights
Need some info on Fate/Zero, Fate/Stay Night w/e. What is it and where exactly do I start/end?
Well Fate/Zero is a prequel to Fate/ Stay Night so you can enjoy the series on it's own merit without needing to watch Stay Night. If you want the full experience I would start with the Fate/Stay Night visual novel though. You could watch the anime although it might make you lose interest as it's really a badly done adaptation of the visual novel's weakest of three route.
As far as what is it about? Both series have to do with the Holy Grail War where 7 Mages summon 7 heroic spirits to battle each other and the victor is suppose to have access to the wish granting Holy Grail.