Thanks again for your replies everyone, I will check out the new links that you have mentioned..

I am going round in circles with my company about the move now, so I will have to hang fire for a bit.

Karen - that's perfectly understandable having the air con on whenever you want, I hate the humidity and I haven't been there during summer months before.

My mum's boyfriend has a freezing cold house but wears multiple layers of clothes to keep warm in England during the winter, whereas I am like you I will just whack the heating on all the time and accept the expensive bills!