Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
Ford T6 Ranger 5cyl Turbo Diesel - which imo will be the first serious Hilux killer.
Most likely i'll be updating to a 2008-on (not 06 or 07) VE 6L V8 within the next 2 years. I'd be happy with a Berlina but finding them with the V8 isn't easy. I'd get a Calais or Calais V but i hate leather in cars, don't want bigger than 17 inch rims (Calais is ok, but the Calais V has 18's), and i don't want DVD screens. Today's Calais models have too much fluff IMO. I've always fitted aftermarket LPG to my cars (VL, VR, current VT) but haven't decided if i'd bother doing the VE. If i did, i'd again fit the BRC Sequent P&D vapour injection system that i have now in my VT.
Another possibility i'm considering is downsizing to a 4-cyl, in which case i'd get 2009-on Hyundai Sonata, or a 2009-on Hyundai i30. I'd prefer to stay with Holden but, so time will tell which way i go.
Why hyundai out of interest? Toyota is who i'd go with for a small car.