In particular I need to busy up the large open spaces with some obstacles to dive over and slide under, but I want to integrate it into the BSP more than just plonking models all over the place. If anyone wants to have a play and tell me what they think it would be much appreciated.
EDIT:
Models to make for highwire:
corner desks
under-desk drawer sets
filing cabinets
computers
cardboard box with fluffy packing thingies spilling out
desk plushies/paraphenalia
photocopiers
deskjet printers
pot plants
big main stairs
archive boxes
things to fix:
material type on office dividers is metal - make it 'default'