Hi Jerry,
I just had my 500 hr mag inspection done by Quality Aircraft Accessories. http://www.qualityaircraftaccessories.com/ What a great experience! I sent it on a Tuesday and had it back on Monday. USPS priority mail. They inspect and replace parts then do an ops check all on the same day it is recieved. The bill was about $350.
See you and Max at SNF 2011.