One of the things I love about living in Melbourne is the after hours medical care. Most of the general practices seem to be linked up with a medical deputising service, which just means that you phone your medical practice and after hours it gets patched through to a deputising service and a gp will come to your house. And it's bulk billed!!!!!!!
You still need to wait for a couple of hours for a Dr to come, but at least you can wait in the comfort of your own home. Something we've had to do quite a bit as our kids' ear infections always seem to manifest on a Friday or Saturday evening.
There is also a super clinic about 15mins away which also has a 24hour pharmacy. Great for when you drop your baby panadol bottle on the tiles at 1am.