If you haven't yet, may I suggest you do a little fishing in this regard at:
http://www.ps-scripts.com/ -- go to Forums
Lots of sharp Photoshop script writers hang out there.
Be sure to mention Photoshop version. Scripts are subtly different across PS7, CS and CS2. In other words if you are running CS2 in your shop and your contracted script writer is using CS or PS7, the script crafted under PS7 won't work on CS2; a CS script "might" work under CS2.
Good luck on your project.
~Danny~