NetBank is plenty nifty. Sure it's had a few missteps, like the whole "do your banking with added Facebook" thing, but on the whole, I'm a fan. Pre-paid users are going to be happy with the latest offering, though: now you can buy Telstra, Optus and BigPond pre-paid recharge credit via NetBank.
This is great, especially if you're tetchy with who you give your details to online like I am. I mean if anyone knew that my credit card number is 8653 2384 329...waitaminute... [NetBank]