Based on the books you mentioned, here are some books I've read that I thought were awesome which you may like: Battle Royale by Koushun Takami The Road by Cormac McCarthy Kindred by Octavia Butler
I tried to read House of Leaves because I was studying postmodernist literature in college and I get the impression that it's a really powerful contribution to the genre, but I didn't get all the way through it. I think I'm going to start from the beginning and see if my attention span holds out better. Was it awesome?
House of Leaves was really awesome. You need to be able to devote some time and attention to it (this isn't a light read, as I'm sure you already found) but it's really worth it. The PoMo typesetting might seem a little gimmicky, until you realize how very effective it is at conveying the narrative. I thoroughly enjoyed it.
(I can't, on the other hand, recommend other works by the author. Only Revolutions was completely inscrutable and barely interesting.)
All the typesetting elements in the 1/4th or so that I'd read seemed effective. The book was recommended to me because I was looking for metafictional poMo novels with hypertext for part of my BA thesis and House of Leaves is supposed to be one of the best contemporary examples of it. I think I'll give the book another go now that I'm out of school and can take my time with it. Thanks