Apple Mac mini review | Pc & mac desktops Reviews | TechRadar:

"The Apple Mac mini has long been the cheapest way to own a Mac. Since its introduction in January 2005, the small form factor desktop Mac has offered a low-cost alternative to the all-in-one iMac or the high-end Mac Pro.
Although it's sold without a keyboard, mouse or screen, everything else you need is in the box. It's internet-ready, through Ethernet or wireless N, and comes with OS X 10.8 Mountain Lion and all its bundled apps pre-installed.
The 2012 generation Mac mini is based on an aluminium unibody design. It's available in two models. The cheaper one has a 2.5GHz dual-core Intel Core i5 processor and a 500GB hard drive, and costs £499 in the UK, AU$699 in Australia or US$599 in the US."

Apple iMac 27-inch (2012) Review - SlashGear:

"Apple doesn’t change things for the sake of change, and that’s why we’ve had to wait a few years for a redesign of the iMac. When a fresh model does arrive, though, it arrives in style: for 2012, the iMac is slimmer than ever, with a crisp new casing that borrows aerospace construction methods and iPhone display technology to wrap together a beautiful, slim computer that’s pleasing to the eye whether or not it’s powered up. Still, as Apple’s mainstream desktop, the new iMac has to perform, too, and with space at a premium there are some interesting choices to be made as to what goes inside. Read on for the full SlashGear review."