Apple has announced its "spring collection" of new iMacs, introducing two new 15-inch and 17-inch models.

The company has added AirPort Extreme to the 17-inch model, while the 15-inch iMac remains limited to the outgoing version of AirPort. Seemingly, neither model boots in Mac OS 9, except within OS X's Classic environment.

The new 17-inch widescreen model features a 1GHz G4 processor and a 133MHz system bus. Its viewable area is 1,440-x-900 pixels. It carries 256MB DDR memory (expandable to 1GB) and a faster four-speed SuperDrive, and offers internal support for AirPort Extreme and Bluetooth. It costs £1,449; the previously-available 17-inch SuperDrive iMac cost £1,649. All prices include VAT.

It includes an NVidia GeForce4 MX graphics processor equipped with 64MB video memory, an 80GB hard drive, and Apple's Pro Speakers.

The 17-inch model offers both VGA video mirroring and S-video and composite video output, the 15-inch model supports VGA video mirroring.

15-inch survives, but not Extreme The new 15-inch iMac features an 800MHz G4 processor with 100MHz system bus and costs £999 - £200 less than the previously-available iMac with combo drive.

The 15-inch model also includes an NVidia GeForce2 MX graphics processor equipped with 32MB video memory, 256MB RAM, a 60GB hard drive, and Apple's Pro Speakers. It ships with a 32x Combo (DVD-ROM/CD-RW) drive.

It offers support for the older 11Mbps AirPort wireless networking, rather than the 54Mbps AirPort Extreme featured on the new 17-inch iMac, 12-inch and 17-inch PowerBooks, and all Power Macs.

Featuring iLife Apple's VP hardware product marketing Greg Joswiak said: "The 17-inch widescreen iMac is Apple's top-selling consumer desktop, and we've just made it faster and more affordable. Apple?s new iLife applications are bundled with the new iMacs, making them perfect for digital photography, music, moviemaking and DVD creation."

Both iMacs offer two FireWire 400, and five USB ports (including two on the keyboard).

The 17-inch model offers the latest in communications with internal support for optional high-speed 54Mbps AirPort Extreme 802.11g wireless networking. Internal Bluetooth support is also available as an option.

Both iMacs include Mac OS X 10.2 and Apple's iLife applications - iTunes 3, iPhoto 2, iMovie 3 and iDVD 3.

Other features include built-in 56K modems and 10/100BaseT Ethernet.

The new eMacs are the same specification machines as before - at lower prices: they feature 17-inch CRT displays, and cost from £799; a SuperDrive-equipped model is also available for £999.