Buying Poetry Books/Taste

I am an avid reader, and I have been since I was very young. My favorite author (fiction) has been Chuck Palahniuk, since I read my first of his books. As some of you may know, he has a...quirky, but dark undertone. I liked that I wasn't reading fluffy teenage romances, and that when I had to do a book report in English class, I got to speak about fake transsexuals who teach better life lessons than most young adult's mentors. But, as this class progresses I find myself reading a lot more poetry, and searching for new poets I would enjoy preferably something along the lines of Chuck's tone. Over this long weekend, I stumbled upon a used book sale, and I spotted the Walt Whitman book (or collection rather), "Leaves of Grass". For fifty cents, how could I not buy it? I picked it up, and skimmed through it before purchasing it, and I knew it was a good buy. I have a habit of highlighting my favorite quotes, and in this used book I discovered that there were red markings in it, showing the previous owners favorite parts. To my delight, I also loved the parts that were marked, it made my face glow. Although Whitman doesn't have that pessimistic feel, I still enjoyed his work. I will continue my search for what fits my taste, but I like that I'm trying different things in poetry than I have in the past with fiction.