Siteminder for authentication

ruler

Hello folks,

Has anyone used site minder for single sign on to teamsite?
We are planning to use it and have some questions before we go ahead
1) We'll be using NTOS so the authentication rules will be a mix of OS rules and siteminder rules..Is that going to be a pain?
2) We understand that siteminder will only do the authentication process and all the authorisation is handled by teamsite...I that going to be hard?

Has anyone done this(or something similar) before.
Any tips or documentation appreciated!

Thanks