Here's an existing TI lib I modified to work with the Value Line series and CCS.
Since the G series doesn't come with factory-calibrated DCO settings, I wanted an easy way to set the MCLK to 16MHz or some other arbitrary frequency. A TI library existed for setting the DCO using an external watch crystal as a reference, however it didn't work with the G series. It just took some minor editing.
I think this should be nice for Launchpad owners especially, since the kit comes with an external crystal and a 16MHz rated chip.
DCO Library: http://naturetm.com/files/Launchpad%20setDCO%20lib