hydraulic disc brakes for mountain bikes. XC/AM. comes with both front and rear brakes. note this is an OEM package, according to their description:
Please note: This item is OE Sourced for better value. It is the original genuine item, but may not include retail packaging.
124.99GBP with free international shipping = 191AUD on the 28 degrees card
there's a guy selling brand new on ebay for 200AUD with free postage but without the 2 rotors.
torpedo7 is selling for 399AUD.
tbsm might price match.
http://frugalrouleur.com/search/avid+elixir+7+brake - cheapest is around 150aud per end
product not available to purchase.
Also avid brakes are well known for there bad reliability.
If you don't do much maintenance go with shimano or formula.