At my company we have not deployed a copy of EPM as of yet. We are working on the data base development but it will be early next year before that happens. I currently manage 22 projects with 62 engineers in a consolidated project. I have created Gantt charts and WBS for each project and I track them individually and as a system wide project. All of the projects have interdependencies and deadlines. The master project allows me to look at the projects as a whole but editing and updating has to be done in the individual projects (limitations of the software) . We use a resource pool to track all people, equipment and supplies accosts all projects this allows for total project budgeting. Seems to work fine with one minor issue, we now have another project manager located in Australia and we use the same resources hence, we are moving to EPM.