Staffing OO development

I am currently managing a large Object Oriented software development effort. Unfortunately, I have only managed “waterfall” type development in the past. I am struggling with putting together staffing plans for this type of development.

We are beginning architecture now, but I want to make sure that once we get into construction, I have the right number of resources with the right skill set.

We will be using WebSphere Application Server for our development environment using J2EE. Forthe analysis we will be using UML and the Rational tool suite.

Any ideas or reference material suggestions?