Service Manuals for Cadillacs

I just bought a new project. I found a really good deal on a 1952 Cadillac series 62. It is complete, although the pic shows it sans chrome. It has 68K original miles. The motor seems to run great. I need to do some work with the power windows and brakes before I can drive it. I was wondering if anyone knew of a good place to get service manuals. I found a place online called Oldcarbooks.com. They service manuals on CDs for the computer. Has anyone ever heard of these guys before? Do you have any feedback on the CDs. Thanks for your help.