bg100, I am in Canberra. I haven't got a huge amount of fancy gear myself - fairly basic adjustable bench with adjustable squat stands on the end, basic bars and weights, saw horses as safety for heavy squats (got these after I had to bail out of a squat and dropped a loaded barbell on the floor in my son's room - put a 6 by 4 inch hole in the MDF!). Also have a milk crate for box squats, cheap dumbbell handles with those screw-on ends, a few odds and ends like platforms (got some modular decking at Bunnings). Also now have rubber horse stall mats for a lifting platform (not put into action yet).
I got my weights mostly at Sportsman's Warehouse. I have only exercise bars (although including a shrug bar from Piedmont Design Associates [the guys who make fractional plates] which cost an arm and a leg). Deadlifts with this are similar in effect to squats, with the advantage you can go heavier and there are no penalties if you fail a rep.
I was in Sportsmans Warehouse recently checking out their Oly bars. They have reasonable ones (York) starting at $169 from memory. They have bronze bushes. These are OK if you aren't into technique lifts. If you want to go heavy on snatch and C&J (full Oly style) you probably should go for a proper Oly bar with needle roller bearings to save your wrists. However, I wouldn't recommend that without a goood coach, which means you will be lifting somewhere with the appropriate facilities.
I still have a hankering to get a power rack, but haven't got round to it. If I do I will certainly be checking out the price to get one made up locally. Although it might not be as fancy, I think you could get a very solid rack for considerably less than the cost of a commercial one.
My strategy - start with the basics, only get fancy if and when you need to. The other thing worth doing is keeping an eye out for when the bigger chains such as Sportsmans Warehouse or Rebel Sport have a sale. You can get a lot of the gear at a considerable discount this way.