I recommend the “buy get one half price luxury shirts” deal – not the cheapest, but very good quality work shirts (2 shirts for 60GBP, or 105AUD delivered).
http://www.marksandspencer.com/Luxury-Sartorial-Shirts-Shirt…
Terms and Conditions:
Free standard delivery to Australia and New Zealand applies online at marksandspencer.com only. Offer applies from 16 October to 13 November 2012. Offer excludes orders placed on M&S Outlet online, 1-click orders, furniture, rugs, electrical items & lighting. Please check delivery terms and conditions online. Subject to availability. All products are sold on a Delivery Duty unpaid basis, so please be aware that recipients outside the EU may have to pay import duty or other taxes. Please check these details before placing an order. The following products are excluded from international delivery: Food, Wine, Flowers, Gift Cards, Hampers, Furniture, Electrical, Lighting, Made to Measure shirts, Personalised Cards and selected beauty products. See individual product details for more information.
Use code: MNSOCT10 for 10% off when spending 75 pounds or more