It seems FIRST has sold some of their excess kit parts to a surplus compnay. I noticed an ad for them in Nuts And Volts.
http://www.resunltd4u.com/
They have:
windows motors and couplers
fisher price motors and couplers
the old rotating lights
can door motors <edit> err... van door
the old drill motors w/mounts
seat motors w/flexi shaft
skyway wheels
I might have missed something
I'm thinking of getting either some FPs or van door motors to build a small robot.