Apple unveiled the new iMac 2009 this week. CNET already got their hands on a new 24 inch iMac with Intel Core 2 Duo 2.66 GHz and published a review with video.
Quote from the review: "We won't make too much of the fact that the iMac falls behind the more expensive Sony all-in-one and two $1,000 or so Windows desktops on some of our tests. We say this because the iMac's performance is acceptable all-around, and also because it dusted its competition on our multitasking test. The older iMacs impressed us on that test, and by outpacing two systems with Intel's quad-core flagship Core i7 CPUs, this new dual-core iMac sets itself apart as well. Dollar-for-dollar, the iMac is among the best complete PCs (meaning the system and the display) for the way most people actually work from day-to-day."
Read the full new iMac review on CNET. Buy the new iMac on the Apple Store.

Update 10/20/09: New 27-inch iMacs unveiled