Cessna 172R is payware from Flight1.
The other Cessna (N379DL) is the C182 II RG by Carenado (payware).
C47 is the C-47/DC-3/R4-D (also payware) from MAAM-Sim, the Mid-Atlantic Air Museum in Ready, Pennsylvania.
The Seafire is free and available from
http://www.aeroplaneheaven.com/ (you have to register first).
UK airports are Gary Summons'/British Airports and the nice ground textures/terrain mesh are courtesy of VFR Photograpics Scenery by Visual Flight.
777-223/ER is the MelJet model (paint by Ed Cox) and is available on AVSIM.
U.S Airways A330-300 is PSS (payware).