Personally I think Scrum Training would be a valuable add on. There is lots of buzz about projects using agile methods/concepts for project execution. If you are looking to move up to a Program Manager role, then APMG's Managing Success Programme is a good course as well.
I work for Firebrand Training and we do provide accelerated courses in Six Sigma Green Belt, MSP, Scrum Training throughout UK, Germany, Denmark, Sweden and Norway. Let us know if that is of interest to you.