The new iMac @ MacAuthority

The new iMac features a 21.5-inch or 27-inch LED-backlit display with a widescreen 16:9 aspect ratio—perfect for HD video. Dual-core Intel processors now start at 3.06GHz, available quad-core Intel processors boost performance up to 2x,1 and advanced graphics make the most of every pixel. iMac also comes standard with the Apple Wireless Keyboard and the new wireless Magic Mouse: the world’s first Multi-Touch mouse. The 27-inch iMac starts at $1699. The 21.5-inch iMac starts at $1199.
Magic Mouse
The same Multi-Touch technology introduced on the iPhone and Mac notebook trackpads now comes to the mouse. It’s called Magic Mouse, and it’s the world’s first Multi-Touch mouse. You can use it just like a normal point-and-click mouse and click anywhere on the surface. And you can use it for basic Multi-Touch gestures. Scroll in any direction, and swipe through images on its smooth, seamless top case. Magic Mouse works wirelessly using Bluetooth, so you don’t have to worry about cables or adapters cluttering your workspace. The laser-tracking engine delivers responsive performance on many surfaces. And built-in software lets you configure Magic Mouse any way you want.
21.5-inch
- 3.06GHz Intel Core 2 Duo
- 1920 x 1080 resolution
- 4GB memory
- 500GB hard drive
- 8x double-layer SuperDrive
- NVIDIA GeForce 9400M
$1,199.00
21.5-inch
- 3.06GHz Intel Core 2 Duo
- 1920 x 1080 resolution
- 4GB memory
- 1TB hard drive
- 8x double-layer SuperDrive
- ATI Radeon HD 4670 graphics with 256MB
$1,499.00
27-inch
- 3.06GHz Intel Core Duo
- 2560 x 1440 resolution
- 4GB memory
- 1TB hard drive
- 8x double-layer SuperDrive
- ATI Radeon HD 4670 graphics with 256MB
$1,699.00
27-inch Quad-Core
- 2.66GHz Intel Core Duo
- 2560 x 1440 resolution
- 4GB memory
- 1TB hard drive
- 8x double-layer SuperDrive
- ATI Radeon HD 4850 graphics with 512MB
$1,999.00