Man I'm so excited. My shipment of books just arrived from Buy.com (that place is incredibly cheap! I got a heck of a steal compared to other retailers)
I got the Year One hardcover and The Long Halloween. I thought those two would go well together being as they are about Bat's early carreer and they were both an influence on Batman Begins.
As a companion set, and since the Supes movie is coming out, I included Superman: The Man of Steel vol 1 (which is as close to a Year One volume as you will get for Supes I think), and Superman: For All Seasons which is by the same writer/artist team as The Long Halloween. I think all of those books should compliment each other well.
I didn't realize TLH was such a big volume. I haven't read any of them so I'm pretty stoked. I had also included two hardcovers of The Punisher and the second volume of Preacher which I think I will dig into first. Feel like a kid in a candy store. I think I have a lot of fun reading ahead of me.