Thank you very much for the information. I have been searching high and low here in the Tampa Bay area for any independent shop that is familiar with the Solstice. I have come up empty so far. Naturally I am going to keep looking.If you are going to have your pump swapped for you, make sure you read up on the issues associated with this activity.
The cam chain tensioner holding tool is a must to preclude issues with the assembly losing tension and eating itself.
Make sure your mechanic uses the generic Delco water pump as its about half the price of the Pontiac part and identical
Read up about issues with getting air bubbles in the coolant system and the resultant issues that many have had. There is a right way and a wrong way to deal with the coolant.