The last few weekends I've been finishing some wardrobes with a friend of mine.
They are rather large, measuring 4.5m long with 4 sliding doors and a wardrobe rail that I can do pull ups on!
The sliding door gear we've been using is the best I've come across. I can smoothly slide a 4ftx8ft door with my little finger and they glide across the room. The doors are made from a sheet of MDF wrapped with aluminium channel, this gives the edge a nice finish and also means that the sliding gear can be fixed securely into the of the MDF.
I'll post some more pictures of these wardrobes when they're finished.