contrast of churchwindows

[jle56]

I am a Belgian Photographer and mostly I photograph art-objects in churches,museums and expositions.
I did a lot of glass churchwindows with a digital Phase One back .I made several shots with different exposuretimes (on a tripod ,so I can overlay them in PS)
My idea was to erase the burned out parts(hundreds of them in each window) so that the better exposed parts of the layer underneath would show up:it works but I wonder if there are no other tricks to do the same but faster and automaticely?
(some mode in the layerpallet?)
Something that a can record as an action.

Jean-Luc

[Pekka]

I think your method is the best quality-wise, but there's also this: http://www.fredmiranda.com/HRpage/index.html