@Octo: You should really read the manga or watch the anime. Preferably both. It's a damn good psychological horror manga/anime.
@Splintered: If this series is a success, you never know... maybe it'll open the gates for bigger projects.
"Monster" is a good choice, though. There are no special effects needed, no high budget, just the right director to give it the right atmosphere.
Oh and I hope they don't whitewash Tenma. Let's not do this.