I love the bat films, Nolans being the best. I like the cartoons aswell. These have lead me into wanting to read the graphic novels. Im planning to buy (off amazon)
Batman:Year One
Batman:The Dark Knight Returns
Batman:The Killing Joke

Is their anything else i should get betwenn Year One and DKR or DKR and the killing joke?

mate great choices all those are essential reading and no thats a real good start yes there is stories set between them but if you have watched the films the different cartoon series etc they all jump throughout batmans career but year one is literally the start of batman and the killing joke is the start of the joker if u really wanted to read everything in order you should buy the chronicles books they gather together the comics in order but i will warn u that the old comics are very dated now but i still enjoy them so its up to you. i also reccomend batman two face if u r interested in the two face charecter coz it has his very first stories back when he was harvey kent right up to the mordern harvey dent we all know and love

Thanks for that information.