Where to get digital negatives done?

Hi,

I have found a few old scanned pictures that overtime now I feel look quite good to be printed as silver gelatin prints in darkroom. The saddest part is I have lost the negatives.
Hence, I would like to know if there's a place in USA where I can send in my digital files to get digital negatives created out of them for silver gelatin printing.

Our own Ian Mazursky does them at prepressexpress and http://www.albumenworks.com/digital_.../archival.html does too.

If you have photoshop and an Epson printer you could do it yourself.... Instructions here: http://www.amazon.com/gp/product/096...?ie=UTF8&psc=1

bob carnie at elevator digital does them, very well.