Chappers,
Portugal is definitely one of the few genuine bargains to be had in Europe.
To answer your question, Chappers, a schooner (425ml - three-quarters of a pint) at a normal but not over posh pub around Sydney will be somewhere in the region of $4.50-$5, which works out at $6.66 a pint, which is £4.16.
You've only got your own currency to blame - when I moved to London in Nov 2008 the pound was worth $2.42, two years later it is $1.58!