If you've been hankering for some extra-slim iMac action, the 21.5-inch model will be available from 30 November.
If you're hanging out for the 27-inch model, you'll still have to wait for some unspecified date in December.
The newest models, apart from cutting a good chunk from the rear, have displays that are less reflective, and can be configured with Apple's Fusion Drive technology, which marries an SSD to a traditional hard disk to bridge that awkward speed/capacity divide.
If you're needing to blow some dinero on an all-in-one desktop, the base configurations are below. At the time of writing, though, Apple's not even allowing pre-orders — it's looking like you'll have to wait until Friday.
|CPU||2.7GHz quad-core Core i5||2.9GHz quad-core Core i5||2.9GHz quad-core Core i5||3.2GHz quad-core Core i5|
|GPU||GeForce GT 640M||GeForce GT 650M||GeForce GTX 660M||GeForce GTX 675MX|
|RAM||8GB||8GB (four user-accessible SO-DIMM slots)|
|Storage||1TB 5400rpm||1TB 5400rpm (configurable with Fusion Drive)||1TB 7200rpm (configurable with Fusion Drive)|