Appreciate their is probably a new model coming soon but this was just what I was looking for - potentially about £805 with quidco new and delivered - you need to use code HARDWARE10 for discount off advertised price
"The Apple iMac MC508 is driven by the Intel® Core™ i3-540 Processor and has the advanced Mac OS X v10.6 Snow Leopard operating system pre-installed. This all-in-one desktop computer also boasts a 500GB hard drive and 4GB of high-speed DDR3 RAM.
The Apple iMac pioneered all-in-one convenience over a decade ago, but it's never before achieved this sublime blend of sophisticated design and professional performance! The precision-forged aluminium enclosure wouldn't look out of place in an art museum, and inside lies a thoroughly impressive computer.
Sporting a gorgeous 21.5-inch IPS LCD screen with Full HD 1920 x 1080 resolution, the iMac MC508 offers a fantastically vivid view of your digital world. All who dabble with photos, video, or graphic design will be blown away by this LED-backlit, widescreen display - but it will also delight movie buffs and casual web surfers!
The dual-core, Hyper-Threading 3.06 GHz Core i3 processor zooms through demanding workloads, while smooth graphics are provided by the highly competent ATI Radeon HD 4670 graphics processor and 256 MB of dedicated GDDR3 video memory. Apple placed the processor and GPU as far apart as possible to aid cooling - helping this slim Mac produce just 18 decibels of noise at idle.
Apple's famous attention to detail is exemplified in several little innovations that make everyday use more enjoyable. For example, the included Magic Mouse features a touch-sensitive surface to bring trackpad-like gestures to the desktop, while the wireless keyboard eliminates clutter. A discreetly-positioned iSight webcam at the top of the display adds video-chat capabilities, and two powerful 17-watt speakers deliver astonishing sound quality and volume - brilliant for music and movies.
The Apple iMac MC508 also offers comprehensive connectivity, including four USB 2.0 ports, a high-speed FireWire 800 port, an SDXC memory card slot, Mini DisplayPort, Gigabit Ethernet, Wireless N networking, Bluetooth, and combined optical and analogue audio in and out ports. And perhaps most surprisingly of all, this amazing computer is priced within the reach of everyone!"