I just noticed on DJ's website that there are a few Pantherella socks for about $12 (mainly for larger feet, but there's a few mediums available) . And if you buy 2 or more pairs, they'll give you a further 10% discount (online only).
Hats off to the blokes at Mensbiz in the Royal Arcade. I've always had a good online experience with them, so visiting Melbourne I went into the shop for a squiz and decided to get a neckshave. They didn't charge me.
Also went to Double Monk, what an amazing shop.