The prices of these dropped to $319.00 initially, and then changed to $319.20 at time of posting.
Available in all three colors although white presently has limited stock (4).
Don't forget shopback is offering an additional 10% off (max cap of $25.00) between 6pm to 8pm (AEDT). Info found here https://www.ozbargain.com.au/node/665946
You might wish to select Computer Alliance as the seller for $319.00 (black only).