My (just recently employed me) company is currently going through some technical woes, and it could be time to start shopping for new tech support.  They are currently running a dinasour shop with a netware 4x, exchange 2000 and 100+ DOS terminal stations (plus a handful of XP for the support staff). 

Our current tech support seems to sware by M$.  When I asked about *nix option, his opinion was that we'd end up "in the same boat as we are now".... i'm guessing a supportless environment is what he meant? 

Anyway,  I'm hoping for some recommendations for a vendor that might help steer us in the right direction, capable of working with netware, M$ and Linux and most importantly able to chose the best tool for the job.  (located on the west side, near 51st ave and Bell.)