The new models’ industrial design is a beautiful combination of aluminum and glass, making them look more like Apple’s gorgeous Cinema displays that past versions of the iMac. All models come with a slot-loading SuperDrive, and a built-in iSight camera too. You’ll also be able to easily upgrade RAM up to 4GB, or up to 1TB of disk.

They’re loaded with just about every connection you could need: USB 2.0, Firewire 400, Firewire 800, and mini-DVI for video. There’s also built in 802.11n and Bluetooth 2.0 wireless connectivity.

Apple also showed off a cool new keyboard design that includes direct access to media control features and screen brightness/dimming too. The new keyboard measures in at a ridiculously svelte 0.33″ thick, more than 60% slimmer than old models. I’m am a bit concerned about the Chiclet-like ergonomics of the new keys though. There’s an optional Bluetooth wireless version available too (without the numeric keys, though.)

Base configurations of the aluminum iMacs are as follows:

• $1199 configuration: 20-inch widescreen (1680×1050), 2.0GHz Core 2 Duo, 1GB RAM, 250GB SATA Hard Drive, Radeon HD 2400 XT Graphics, 8X SuperDrive
• $1499 configuration: 20-inch widescreen (1680×1050), 2.4GHz Core 2 Duo, 1GB RAM, 320GB SATA Hard Drive, Radeon HD 2600 Pro Graphics, 8X SuperDrive
• $1799 configuration: 24-inch widescreen (1900×1200), 2.4GHz Core 2 Duo, 1GB RAM, 320GB SATA Hard Drive, Radeon HD 2600 Pro Graphics, 8X SuperDrive

All the new iMac models are available immediately, and should be on the Apple Store shortly.