Thought I would bump this back up and see if you ended up getting a new bbq, AJC?
We checked out Bunnings when we were near them at chrissy, and my DH has fallen in love with one of the Matador bbq's. We walked around and checked all the knobs on them, and the matador ones seemed to be a bit more 'heavy', seemed like they were a bit sturdier.
Now I've just got to save some $$. Might try to get it for DH's birthday in July!

Nic