Thanks a lot! I'll definitely check them out. :-)Miller, Morrison and Snyder's Batman stories are basically their own thing. No need to try to place them in some continuity, even if Morrison has a cool way of doing so.
I think Miller's Batman Year one should be read together with The long halloween and Dark Victory (who acts like "year two" and also served as inspiration for Nolan's Batman films) and then Dark Knight Returns (can be read as the last great batman story). Sort of a "classic" run.
Then there's Grant Morrison's insane Batman epic. Batman & Son, Batman RIP, Time and the Batman, Return of Bruce Wayne, Batman and Robin (vol1-3) Batman incorporated (vol.1, and then n52 vol.1-2 Demonstar and Gothams most wanted.). It's basically nuts, but epic. Uses more or less every batman-story there is into it's continuity. Batman becomes a Batgod-monk in it. It has everything from batcow to time travel, so beware. Can also be read as a one last great batman story (similar to DKReturns).
And Snyder's. I haven't read much of it, but from I hear it's rather good. A reboot of the batman story, with both new stuff and alot of homage to the old. Lots of horror elements. Reading order: Court of owls, City of owls, Death of the family, Zero Year: Secret city, Zero Year: Dark city, Graveyard shift (out next year) and beyond that there's Endgame also sometime next year.
Happy reading. I'd also recommend Brian Azzarello's Batman. Either Joker (very depraved but interesting take on joker) or the batman stuff he's done with Eduardo Risso (collected in b/w as Batman Noir. Has a great pulp feel to it, and NO ROBIN!). And also Alan Moore's Killing Joke, also a grim but good Joker-story!