Thanks for the input all, I'll look into these options, I was thinking UK prices are approx 230 GBP, if exporting VAT gets dropped, so approx 200GBP + approx 60GBP Shipping (X12), plus approx 20% import, so approx R3,500.. which beats R5800.. I fit ends up closer to R4500, I'll consider buying locally.
As for the Does 600/650 beat the 595s, no idea, maybe not! I was just planning on buying the latestish model.. and not get into the brands/vs models etc debate... I just want headphones without too much thought or I'll never buy any (I admit it)!
I'm resurrecting my Williams Hart Chiarra Pre/headphone amp, but have no phones. I have a spare CDP, and a turntable (401) taking shape. I want to sneak them into a corner of the house somewhere I can escape!