Client and Site Info Management

[Toulinwoek]

I saw a program a few weeks ago (can't remember where or what the name was) that acts as a repository of information for people like me who build websites for others, take care of hosting and maintenance and domain registration and the like. I need to track customer info, site building info, hosting info, and of course payment info. The program I had found had these capabilities.
Does anyone know of such a program? If not, and I can't locate the one I had found, I'll just write one.
Thanks!