AUSDAY
… Plus free shipping also available on most items (Spend more than $250).
This is usually pretty popular, and is now a bigger discount (till Australia Day).
The Ermenegildo Zegna suits looks like a pretty good bargain. 'RRP' is $1,339, on sale for $573, coupon bring it down to $458 delivered. (Should be able to get that tailored to you for ~ $500 all up, not bad for a 100% superfine 160 wool).
Some nice looking Moss Brothers dinner suits for ~ $150 as well.