The next generation in operating system, MacOS X Leopard is gonna be released and you can pre-order to be sure one of the first people who can enjoy the new OS.
Pre-order it at Play.com to save £5 (pre-order price in Apple website is £85).
The OS will be released on 26/10/2007, so the time to pre-order it is not very much, do it now if you intend to buy this product.
Amazon.co.uk are selling the single Mac version for £79.98 and the Family Pack for £119.98 (but £113.98 with NUSextra code). Play.com are selling the Family Pack for £119.99 so will work out cheaper (unless NUSextra) if you factor in 2% Quidco.