Choosing a project

Our team has now begun the process of selecting an open source project which we will contribute to.  With so many choices it can be intimidating to scale down candidate options.  But throughout our search, I have looked for a couple of key factors that should be present in our final project.  One such factor is explicit information on the project's website on how to get involved.  The other thing I'm looking for is a project that would actually be of interest to our team.  At the moment, I have two 'favorite' projects.  I would enjoy working on either of the two.  The first is OpenMRS (http://openmrs.org/)  OpenMRS is an open source medical record system.  It's core purpose is to aid the delivery of health care in developing countries.  This project is very important to these developing countries that can now have access to such technology that would normally be way out of their price range if they were to consider a proprietary version.  The other project is Plone (http://plone.org/).  It is an open source content management system which prides itself on being elegantly minimalistic.  It has good info on getting involved and is also a viable option.  I will have to discuss these options with my other group members but by the end of the week we will have selected our project.