I am so glad I posted this question. Everyone is bringing up points I never thought about. I did not ask for references, I just figured, he is going to give me people he knows will give him a good one. The roofer with the best warranty has been in business, since 2002, the other roofer since March 2007. It seems very clear now, which roofer to go with. I do want the best materials, I definately don't want to do this again anytime soon. I am going to have to practically start my emergency fund over, I am not complaining, I am thankful I have it to take care of this. Thank you everyone, for your wonderful recommendations.