One pretty cool graphic novel I've read is called We3 - it's about a dog, a cat, and a rabbit that were abducted by the U.S. Government and turned into cyborg killing machines. They're slated for destruction once their "trial run" is over, so a sympathetic scientist allows them to escape. They evade the military while pursuing a vague sense of the "home" they had before the experiment - kind of like that movie "Homeward Bound", except the animals are kick-ass cyborgs. It has some awesome action scenes, and a thought-provoking, poignant, and at times disturbing storyline.