SanDisk Ultra USB 3.0 Flash Drive 256GB (SDCZ48-256G-U46) $69.99 USD plus shipping
Amazon Global Standard Shipping (9-12 Business days) $69.99 + $5.05 = $75.04 USD or (Approx $110.09 AUD)
Amazon Expedited Shipping (7-11 Business days) $69.99 + $7.07 = $77.06 USD or (Approx $113.05 AUD)
Note this is the cheapest price I could find with one exception on Ebay for $102.69 AUD but it is from Hong Kong and I guessed a lot of people would prefer it shipped from Amazon. I couldn't find the exact model number listed on the ebay one either.
But here is the link for the Ebay one if you prefer that.
http://www.ebay.com.au/itm/SANDISK-ULTRA-256GB-256G-256-G-GB…
http://www.amazon.com/review/R6F9OI1E6HCSC/ref=cm_cr_dp_cmt?…
27 MB/s write means it would take roughly 2hrs and 40 mins to fill (assuming large files, not lots of small ones).
In other words 37 seconds per GB.
That's not unusable but it's something to be aware of.
If size, power from the USB port and unusual amounts of vibration aren't issues, you could pick up a 2TB drive on special for that amount of money. But those are factors for a lot of people, especially the size.