Just wanted to make sure all you ERWin users out there were aware of the fact that you can now use version 7.2 to model directly against a DBPro project! Please go here for more details. This gives you the ability to make changes to the physical schema of your database and automatically propogate those changes back into the project, injecting the appropriate model into the project as well.
We will be doing a web cast that discusses the features this integration exposes in more detail in the coming weeks, but for now, certainly download an eval copy ( if you don't own ERWin yet! ), and give it a shot!