Hey, congratulations!
I noticed the first book seems to be getting good reviews and ratings on Amazon.com, for your sake I hope it has been paying off. I also noticed they have a version for the Kindle (not that I have one of those).
I have to confess, I'm guilty of the fact that I've never gotten the first one, I haven't had time to sit down and read a good book in quite some time.
I did notice they have a feature on Amazon's website that allows one to read a few random pages, also.
Edit: Dammit, I can't believe that happened - I read a few of the first pages in Amazon's online preview viewer, and now I'm hooked.
Now it looks like I'll have to actually get a copy! No, I'm not just saying that, very few books can grab me like that in just the first few pages.