OK thanks for the replies guys. I think I can get them down to about $700 Aus dollars as I've bought gear there before. Based on the higher prices we pay in Aus I'd guess this should feel like a $600 price for our US friends here. But yeah at that price point, maybe the Fostex TH600 would be a better idea.
I agree the TH 600 might be a better idea OR you can try a used one. I'm only really interested in a modded D7k now [I've got my D2k... it's still in bound but well it'll b here eventually :/]
So here's to hoping in the next year I end up with one... although I might stumble upon a TH 900 for less than the cost of the MD 7k