Apple have a pretty inspired set of new iMacs out now and they have upped the anti on design, innovation and class for this type of machine. Not only can we now get 27" of gorgeous display, but we get upgraded internals and a very cool multi-touch mouse to boot.
[image of the new iMac via the Apple site]
The big 27" version can even sport the ATI 4850 which is a mighty card for such a machine, Toms Hardware show how well this card can perform, really a great addition to a machine in this form factor. Check the Tech Specs page to see the other components and options available.