So three of us are going to be splitting a 1 bedroom apartment. The living room will be split in half to create one bedroom. The real bedroom will then be divided to create the other two bedrooms. Our problem was that no more pressurized walls are allowed in NYC. So, this is our solution. If you have any tips, hints or comments, I'd be appreciative.
Using this IKEA sliding Door:
IKEA | Wardrobes | PAX/KOMPLEMENT system | PAX LYNGDAL | Pair of sliding doors

Each wall will have a wood frame around it to house the top/bottom tracks and also to make up for the height/width difference between the sliding doors and the openings.

This is how it will look from the hallway we're creating to separate the two rooms.