Hello,
I just wanted to comment on this topic a little bit. I read Dean's books and I have followed his blogs for a year now, and I just want to tell you it works.
I did my first deal over the summer and I made 1700 dollars for my investing company without having to use any of my own money. I am using the 25/1 rule when putting in bids on properties. I am putting in bids on numerious homes at 50 percent below what they are asking and I have had five houses under contract since then with 50 or more percent equity built into each property. That rule works and I highly suggest you use it when you are putting in bids on your properties.