This is what I say to this:
If you want some great references go to DNjournal, here at Namepros and search what you are looking for. I have had success typing selling, how to sell, what to look for, how to find premium, etc.
I am sure there are great ebooks out there but as Reece and a few others have said. There are some super helpful people here that I am sure would be willing to give you a hand up, not a hand out.
Try to keep your overhead costs low, don't get suvked into those sales letters promising you millions when you can get real world views right here and in other forums.
Jim