Fight Club - Chuck Palahniuk (Movie was great, but the book's even better)
Survivor - Chuck Palahniuk (Wierd as hell, but has a lot of cool subtle

)
Game of Thrones - George R. R. Martin (Fantasy, but not
too fantasy. Got into this recently as they were about to air the HBO series, it's the first book in a series of four going on five. I'm diggin' it, currently on the second book.)
Generation Kill - Evan Wright (One of the few books on Americans in Iraq that's actually worth a damn. It follows a Recon unit through the early days of OIF.)
The Stand - Stephen King
The Gunslinger - Stephen King (First of seven. If you like the first, you'll probably like the series.)