Headset suggestions?

Okay, I've read the sticky before, so I have a general idea of what I should buy.
Basically I have a budget of $100AUD, not a lot I know. I would prefer it to have a MIC but it's not 100% necessary. I don't have a clue where I should buy from here in Australia. So could anyone kindly suggest a headset and where I should buy from? would be greatly appreciated. :)

Heres some cheap ones, you didnt say what it would be used for.

http://www.logitech.com/en-au/special-offers/devices/6526