Transferred this brew to a keg this arvo, very happy with the result (so far).
Instead of the Chinook, I used Warrior (thats what the LHBS had in stock) to a ratio of 1gW:1.4gC. The hop flavour out of the fermenter is fairly well balanced, nothing overpowering at all and there is a nice hint of tropical fruit(??) As I haven't made the step into liquid yeast, I used US-05 and set the temp controller to 18. Two weeks later, lovely brew waiting to be devoured.
Thanks for the recipe argon, muchly appreciated.
H.