You’re probably right about the list 30 years from now, I suspect.

A Clockwork Orange is good, and wouldn’t take you long to read–only about 140 pages long, IIRC. Has lots more of the Nadsat language, if that’s what you liked about the movie.
Burgess has other books, but I only read one of them, The Wanting Seed from around the same time as ACO, which has a future where people are forced by the government to be gay. I didn’t feel like reading the rest of his 40 other books or so.

Oryx & Crake is the first part of a trilogy where the second and third books weren’t as acclaimed as the first, and I’d agree with that assessment. If you really love it, I wouldn’t necessarily say that you have to read the next two books.

Dhalgren…prepare for lots of atmosphere. And lots of not so traditional narrative. And a completely pointless explanation for what the title means.

The Stand, have fun, I did, but we’re both probably far too old to think of this as a really kick-ass book.