Yeah, I think I can handle it. The book I'm reading right now, The Plague Dogs, is pretty graphic as well, but I don't get too squeamish. If the violence is only a couple parts or so, I should be fine (it's not as if it's a Stephen King novel).
The Princess Bride book was really funny. Believe it or not, the movie stayed fairly true to the book. There were only a few parts missing and it wasn't that big of a deal. I plan on reading The Rising Tide after I finish Plague Dogs.