Percussion and Portal

Hello all,
We have implemented our site in Linux 6.7 and now we are planning to implement Portal on top of it. I am trying to see if I can get some information specific to Portals and Percussion.

Does Percussion recommend any specific portal product?
What are the common pitfalls when implementing portal over Percussion CMS?
How to implement personalization, when we are publishing static files to a file system?

Any help would be appreciated.