Tom L. , Nov 27, 2010; 12:29 p.m.
There's a process called Nu-Baryt that has been around for three or four years now. Digital (monchrome) files are exposed via an enlarger on to classic fibre based paper (http://www.variochromat.de/). The paper is then processed the traditional way (developer, fix and wash). Not exactly the budget option though, but neither was b/w printing by hand a few years ago and it does give the best quality as well as lasting prints.
If your lab has an Agfa D-Lab or a Fuji Noritsu and your files are in Greyscale mode, then your images shouldn't have a colour cast as the files do no longer contain any colour information for the machine to read when printing.