There are dozens of companies that make either the old style "hidden" sliding door hardware (more like old fashioned closet doors...) AS WELL AS the more modern style "exposed" style oversized rollers and such. In bathroom big enough for a swinging shower door that might be easier access, but honestly the ability to leave a sliding shower OPEN when younare done really helps with the MOISTURE ISSUES.
Folks that put in a lighter colored tile / stone often have major issues with mold IF they don't do something to be sure that the shower area completely dries out daily...
Glass shop that is unaware of the HUGE range of hardware options is probably gonna be of business soon! This basic setup is awesome for most showers: I have seen these in Victorian style baths as well as stuff that is crazy modern --
http://www.faucetdirect.com/index.cf...iqueId=1206247
Internt sellers are an option, but shipping will eat you alive. Obviously glass has to be handled with care and for most freight companies that means big up charge.