FutureVision.com.au is good.
Personally I would not have registered the others. Monetise them and think of offering them for sale. You never know who likes them espcially the 3 letter ones. Use the profit to buy something better. Quality over Quantity is the key.
Netfleet has a ton of good .com.au names for aftermarket sale, You can also do a whois on names and contact the owners direct if that system does not work for you.