The £2,179 or € 2,685 version of the 27-inch iMac is a very fast system, and it still of course has the outstanding 27-inch 2560x1440 display. We loved how the Fusion Drive works in MacOS X. It strikes the perfect balance between having a fast SSD and lots of storage, and it automatically prioritizes which applications and data are stored where. If you can afford it, we'd certainly recommend you get one.
The Fusion Drive does not work in Windows. Boot Camp puts the Windows partition on the hard disk, so you won't benefit from the speedy SSD. Curiously, the SSD seems limited to SATA300 performance, but then again Apple did not optimize Fusion Drive for Windows. You could of course remove MacOS X all together and only run Windows, but that probably goes too far for most.
The iMac 27 inch with the powerful Intel Core i7 3770, GTX 680MX and Fusion Drive is fast and it can handle recent video games and other demanding software. Along with the sleek design and beautiful IPS display, it's a memorable if expensive computer worthy of the Gold Award.
Apple iMac 27 inch with Fusion Drive, Nvidia GeForce GTX 680MX.