Software tool for resource pipeline planning for multiple projects?
My company has about 20 - 30 open projects at any given time, as well as 5 - 10 that have been approved and will start within the next few weeks. We currently use Basecamp to manage the projects and break them down by hours per area, i.e. 45 hours design, 200 development, etc. Are there any good systems, preferably open source, that can help visualize hours that will be needed for all of these projects in the future? Thinking of a 3 - 6 month future view. I've been looking at the plugins offered by Basecamp but haven't been able to find anything that will show multiple projects at once using an hourly view.