Lenovo Legion 27″ IPS QHD 180hz 0.5ms Gaming Monitor R27qe $247 + Delivery ($0 to Metro/ In-Store/ C&C/ OnePass) @ Officeworks

From what I have seen so far out there, this looks like a very good deal

27″ IPS display with a 2560 x 1440 resolution.
180Hz refresh rate and a 0.5ms response time.
It features lift tilt swivel pivot adjustments for ergonomic comfort.
HDMI 2.1
450nits