Thanks all for your advice!
Can't work out which store you found Andrew as It's illeagal here to sell alcohol in a supermarket- only Govt. controled liquor stores and a few private Beer and Wine stores , But i'll check out all my local options.
If those beers are in US, KeeganAles, then there's a good chance they made it over to the Western States too. It's an easy visit for me so i'll check those out when I go down to Seattle next.