Since i requested this board i think that i should share some ebooks. So here's my first one. It's a great ebook about metasploit, so if you are interested in Metasploit or want to become a penetration tester read this ebook!
Sorry guys, I just had a look through it, and everything except for the chapters listed below can be found online for free from the Metasploit Unleashed site:
Chapter 13: Building Your Own Module Chapter 14: Creating Your Own Exploits
Chapter 15: Porting Exploits to the Metasploit Framework
Chapter 17: Simulated Penetration Test
Even then, there are plenty of tutorials online that cover the exact same topics above. I'd say unless if you're new to Metasploit altogether, or new to hacking in general, you're probably not going to get much out of this that you didn't already know.
Prior to reading your last paragraph m0rph i was going to mention the same, it does all seem to be re-worded/formatted information found easily online.