in order for the smoothest LAN operation--for printer/file sharing among your computers, they should be on the same subnet.
first, connection your cable modem. then connect the router to the cable modem. I'm assuming your router has more than 1 ethernet port--you'll need three here: one for the PC, one for the playstation, and one for the base station.
now connect your ps2, PC, and base station. you should configure your base station for ethernet bridging--this way, your base station doesn't create its own subnet, but will act only as a wireless bridge into the LAN created by your router.
it doesn't look like you need the hub.