Yuetlee, thanks for your help, but what I'm after is very different to your picture. Nice healthy looking plant though.
What I'm after is definitely a pumpkin, orange flesh and all that, but with a blue-grey skin. There's one sitting between the 2 seats in EJ's photo.
'Jarrahdale' is a variety like that, but the good news for me is that Kings Seeds does a 'Queensland Blue' which to my knowledge is very similair - that's what all the ones in the supermarket back at home are called.
It's probably a lot of pointless obsession on my part, but I expect you know what it's like to miss something from home and not be able to get it here.
Sounds like it's ok to bring seeds in to the country though :)