Boeing 737 (US Airways/Hawaiian)
Boeing 767 (Continental)
Airbus 319 (US Airways)
Airbus 320 (US Airways)
Airbus 321 (US Airways)
Airbus 330 (US Airways)
Embraer 175 (US Airways Express)
CRJ-200 (US Airways Express)
CRJ-700 (US Airways Express/Continental Express)
CRJ-900 (US Airways Express)
Dash 8 (US Airways Express)
I think that is it, but I may be missing one of two.
I've flown on every plane on US Airways fleet (I fly standby) except for the 757 and 767 (though I flew on a Continental 767 en route to Hawaii back in 2002). This is ironic considering my dad flies 757/767s for US Airways out of KCLT...