Receiver ... I use the Futaba 10CG so I generally use a R617FS, but the R6106HFC will do the trick with the 6 channel 2.4GHz radio.

Servos ... I use only a analog metal gear Hitecs personally at the torque range appropriate foer the aircraft/. I don't use digital servos because I don't need the response rate, the additional torque, or expense

Battery ... I use a 4 cell 4.8v NiMH 2200 maH but others will use 5 cell 6v or LiPO or the new LiFe batteries.