Can i just also add that depending on what setup you are going, and really want a after market ECU, i think Haltech is the best bang for buck.
Has a lot of tuning options
Aussie product (therefore lots of support)
Plenty of supporting Hlatech products (map sensors, boost cntr. kits, dashboards etc etc)
Turbs 13 (spelling ?) on here with 32 GTR went from PFC to Haltech and he said he would never go back.
Haltech E11v2 is their top of the range ecu and its around 2G new.