Darkly Dreaming Dexter

I've been wanting to watch this new show but it's on Showtime and we don't get that. Apparently you can watch it online though. Dexter I'll have to check "on Demand" it may be on there. It's from an e-book called "Darkly Dreaming Dexter" I can't imagine reading an entire book off of the computer.
Dexter is about a CSI guy who is also a serial killer. I think it sounds interesting. JP & Kama say it's really good.