The new Telstra USB Next G modems (2007) work quite well but there are a few problems with the bigpond driver for OSX. The auto setup has a few problems, it misses some steps and describes some steps wrongly, ,so best if you have an experienced mac user with you while you install!
1. Get a telstra bigpond external wireless USB modem.
2. Download the installation software from bigpond.com downloads. You actually need to have internet access to do this! Otherwise you can download it from another computer and copy it to your computer using a USB drive.
3. Follow the instructions to install.
4. When you are using the modem, make sure you plug in and turn on the modem after you boot up or wake up your computer, and turn of the modem before going to sleep. Don’t put your computer to sleep without unplugging the modem or it will crash. This is a bug with the Bigpond software.