Welcome Sky Surfer, to the forum and the DBG family. I'm one of those that will tell you to read. That's where all of the shared experience that people have had with the various vendors is to be found. For a specific vendor, if you don't want to read every page of a huge thread, at least read the last half dozen or so pages to see what they've been like most recently.
You may want to look for info about Aussie Customs too. I understand they can be tricky sometimes.
You can also use the searchbox (upper right) for more specific info.
Its a lot to take in and may be overwhelming when you are new but there's are hundreds and hundreds of friendly, helpful people here that still remember what it was like when they were new. Some will likely be more inclined to help if you have demonstrated that you've tried to put in some work of your own.
The last thing I will share (2 really) is never send more money than you can afford to lose, and, for the first order from a particular vendor, try to place a smaller order just to be sure it meets your standards. Oh, and one last tidbit....the Holidays are nearly upon us and that means longer, sometimes much longer shipping times. Plan accordingly.
Have fun!
W2o4t