Steelcase are having a 25% off the Gesture range and 20% off storewide using code: PACIFIC20
They've started offering a "Knocked down" package so the delivery fee is waived. I'd recommend this option to save some money as the chair is not too difficult to assemble. It's just got a heavy piece you have to align on the base so you'll be fine with someone helping.
Fully assembled delivery is about $54.
"Please Note: Knocked Down Self Assembly Delivery is FREE for customers based in NSW/VIC/ACT. Fully Assembled Delivery is only available for customers based in Sydney and Melbourne"
Go try them out at your local dealer first. I've tried Steelcase chairs and they just simply didn't suit me, made my back hurt within the hour that I was trying them, don't just buy blindly!