what some of those cars were missing, was a good dyno.
noel, basically ur after the same setup as andy (bunta) tuesday nite get him to tell u his specs and what he's made power wise.
basically u need:
turbo
fuel pump
injectors
power fc
boost controller (dual solenoid is best, so blitz id3 or hks evc 5)
then if u wanted better mid range (whcih u'd want) get some cams, say 264's with ~9.5mm lift
cam gears
a good tune and ur laughing!
oh u'd prolly also want some new coilovers and pads & rotors to put the power to the ground and to pull it up.
speak to dan regarding parts, as he can do very good prices