http://www.digitalcinema.com.au/denon-ah-ncw500-on-ear-noise… code "cowboys" brings it down to $149
http://www.digitalcinema.com.au/boston-acoustics-hsi-460t2-6… code "thruston" brings down to $99
http://www.digitalcinema.com.au/boston-acoustics-vsi-h470t2-… code "beard" brings it down to $159 SOLD OUT
http://www.digitalcinema.com.au/boston-acoustics-hsi-h6w2-du… code "istandwithadam" brings it down to $189
Your RRP on the in-ceilings is a bit much but still a great deal OP (50% cheaper than eBay).