iam pritty sure yuill be ok with your MSFFB2, i use my x52 with no problems.
as to make FSX look damm real i would recommend REX "real enviroment extreme", ORBIX have some realy cool ground textures.
as for aircraft some freeware ar just as good if not better then payware(get aircraft that ar not updates from fs2004 etc, they work just fine but ar prone to be little buggy).
freeware i recommend ar F-86E/F Sabre by Section8
the latest F-14 from Dino Cattaneo and his Goshawk T45 which i cant seem to leave alone
for payware A2A P-47 razorback, Real Airs spitfire, Flight ones PC-12 pilatus,Aerosofts F16