Apple has unveiled its new iMac range
, and as expected the all-in-one desktops have been upgraded with Intel's 2011 Sandy Bridge quad-core processors, new graphics and Thunderbolt connectivity. The new iMacs come in the same 21.5-inch and 27-inch versions, with the entry-level $1,199 21.5-inch model having a 2.5GHz quad-core Core i5 processor, AMD Radeon HD 6750M graphics and a 500GB hard-drive. At the other end there's the $1,999 27-inch machine with a 3.1GHz quad-core Core i5 processor, Radeon HD 6970M graphics and 1TB of storage. Optional is a $200 quad-core Intel Core i7 processor upgrade on select models, running at up to 3.4GHz.