ESX Server Configuration Management

I am not very happy with the landscape of configuration management software out there for VMware ESX server.  I am investigating using projects such as Bcfg2 to administer my servers.  I am working with Bcfg2 because I do not have a lot of experience with these types of software and I am interested in learning more about Python.

Of course these types of packages fail when you look at ESX 3i, but I am not convinced that I will be an early adopter of that platform.  I have tried to automate a few things with the VI SDK, but I am having trouble finding all of the information that I want to audit.

If anyone knows about a good CM solution for ESX please let me know.