You can currently get your hands on a copy of Office for Mac 2011 Home & Student at a 20 percent discount on the Microsoft Store.
Microsoft is offering Office for Mac 2011 Home & Student for £80, but only if you download the software rather than buy the physical version.
Microsoft points out that by downloading you're not only saving on delivery charges but helping to save the planet as well by reducing the amount of greenhouse gases produced by packaging and shipping. Also, it's more convenient if you have a MacBook Air, which doesn't have an optical drive.
To get the 20 percent discount, follow this link to the Microsoft Store, select the download option for Office for Mac 2011 Home & Student and enter the code MYMACOFFER at the checkout.