Lexar 64GB Micro SD 633x 95MB/s Class 10 Memory Card - USD$60.95 / 32GB USD $34.95 + Ship Amazon
Lexar High-Performance microSDXC 633x 64GB UHS-I Flash Memory Card LSDMI64GBBNL633R
USD $60.95 + Shipping
32GB USD $34.95
16GB USD $22.45
Comes with USB 3.0 Micro SD reader. This is the faster version of the 600 x speed card currently selling for AUD $59 including delivery on OzBargain - https://www.ozbargain.com.au/node/147331
The added bonus of this card is the USB 3.0 reader, a better looking card (it counts for something) and additional speed for under $10 more (depending on what else you buy to reduce the shipping).
Edit: The price of the 600x speed card at Amazon has literally just dropped in the last five minutes from USD $74.99 to $USD $49.99. I've posted this as a new deal here - https://www.ozbargain.com.au/node/147401