Hi SamSSX,
I know OROS has a facility in Virginia where you can calibrate your instrument or send it for maintenance. It also has reps around the country but I can't say exactly where. I recently talked to one of them from SC who was quiet technical (not a salesdroid!).
Cheers
I was in IMAC yesterday for conferences on Structural Dynamics. They had some exhibitors too. You should have come, it's nice to compare modal analysis softwares and instrumentation. ME'Scope is a good software very complete but it's not so esay to use. Since I was there I would recommend you...