Lizards can't hurt you, they're really cute actually, I've got a resident blue tongue lizard in my feed room that is about 20cm long. He just sits and watches me make up feeds and I give him a bit of carrot and some pellets :)
Spiders, we've got a few nasty ones, the red backs are pretty bad. But I'm still alive and kicking, have yet to be hospitalised or even made sick by a spider!
The sharks, well.... we have a fair few of those I'll admit! Particularly in South Australia and Western Australia I believe. We get some very large great whites, 6 foot is not uncommon. But generally they won't touch you. A handful of surfers will get taken each year, but compared to how many get killed coming off a horse or in a car accident, it's pretty minimal :)
You did forget the salt water crocodiles though! Now those ones are nasty buggers, in Darwin you can't even swim in the ocean because they all hang out at the beach. There have been a lot of people taken by crocs :/
We have no large, land predators though like you guys!
Yep, it's BLOODY hot!!!! However - I much prefer summer to winter and it doesn't even snow here. And daylight savings is so brilliant, I can go and feed the nags at 8pm when it's cooled down, and its still daylight!
-2c.... brrrrrrrrr no thank you!!!! The lowest it gets where I am in the middle of winter is around 4c and that's at night. During the day, you are really unlucky to be under 13c! Right now it's a quite nice 37c, air condition is pumping, and I am sitting on my balcony under a shade cloth, with a Southern Comfort and Lemonade with ice in one hand, my laptop in front of my and my latest drawing on the go.