Apple has upgraded the iMac line, now offering Core i3, i5 and i7 CPUs.

There are now Core i3, i5 and i7 options available in the iMac range, so there’s plenty of price and power options.
21.5-inch display (1,920 x 1,080)
3.06GHz Core i3
4GB of DDR3
ATI Radeon HD 4670 with 256MB RAM
500GB hard drive
Price: $1,199
21.5-inch display (1,920 x 1,080)
3.20GHz Core i3
4GB of DDR3
ATI Radeon HD 5670 with 512MB RAM
1TB hard drive
Price: $1,499
27-inch (2,560 x 1,440) LED-backlit display
3.20GHz Core i3
4GB of DDR3
ATI’s Radeon HD 5670 with 512MB RAM
1TB hard drive
(Optional upgrades include 3.6GHz Core i5, 2TB HDD, 256GB SSD and up to 16GB of RAM)
Price: $1,699
27-inch (2,560 x 1,440) LED-backlit display
2.8GHz quad-core Core i5
4GB of DDR3 memory
ATI’s Radeon HD 5750 with 1GB RAM
1TB hard drive
(Optional upgrades include 2.93GHz Core i7 CPU, 2TB hard drive, 256GB SSD and up to 16GB of RAM)
Price: $1,999
Adrian Kingsley-Hughes is an internationally published technology author who has devoted over a decade to helping users get the most from technology.
Disclosure
Adrian Kingsley-Hughes
All opinions expressed on Hardware 2.0 are those of Adrian Kingsley-Hughes. Every effort is made to ensure that the information posted is accurate. If you have any comments, queries or corrections, please contact Adrian via the email link here. Any possible conflicts of interest will be posted below. [Updated: February 23, 2010] - Adrian Kingsley-Hughes has no business relationships, affiliations, investments, or other actual/potential conflicts of interest relating to the content posted so far on this blog.
Biography
Adrian Kingsley-Hughes
Adrian Kingsley-Hughes is an internationally published technology author who has devoted over a decade to helping users get the most from technology -- whether that be by learning to program, building a PC from a pile of parts, or helping them get the most from their new MP3 player or digital camera.
Adrian has authored/co-authored technical books on a variety of topics, ranging from programming to building and maintaining PCs. His most recent books include "Build the Ultimate Custom PC", "Beginning Programming" and "The PC Doctor's Fix It Yourself Guide". He has also written training manuals that have been used by a number of Fortune 500 companies.
Adrian also runs a popular blog under the name The PC Doctor, where he covers a range of computer-related topics -- from security to repairing and upgrading.