Speaking of staying in the city, here's a recent project that Roberto Gil of Casa Kids just emailed me the other day: a bedroom for three brothers.
It's a custom adaptation of Casa Kids' Marino bunk bed + stairs and another bed. Plus a couple of hanging desks, and some shelves and extra storage. It all cost about as much as the gas you'll burn in a year of shuttling kids around the suburbs.
Three Brothers Share A Room [casakids]