Hi Mudrat and welcome.
Are you planning a trip to the top, an extended trip or do you go 4wdriving and camping when ever you can kinda thing?
You've got a young family like us, so you'll probably have to take a ton of crap with you.
There are plenty of good brands out there and there are also a lot that are crap.
Get ya self to a 4wd/camping shows and have a look at whats out there, and ask questions of them that are selling them. Even go to a caravan park and ask people what they have and why.
Weights a big thing as well, what is your tug? No point in having something like ours which weighs 1300Kg empty and you have a small 4wd, God knows what it weighs fully packed traveling, 200lt water, two batteries, 2x9 kg gas bottles, 2xspare wheels, the list goes on, Just have a look at the crap we take with us in my signature link
Good luck with it all Mudrat and happy travels.