Apple releases new iMac models

Apple released a slew of new products Tuesday morning, including long-awaited updates to its iMac, Mac mini and Mac Pro lines of personal computers.

The iMac, with its all-in-one design, now starts at $1,199 for a 20-inch version featuring a 2.66 GHz processor and 2 gigabytes of memory. A 24-inch version ($1,499) comes with 4GB of memory and up to 1 terabyte of hard-drive space. A fully tricked-out iMac -- upgradeable to 8GB of memory -- now runs well over $3,000.

All iMacs come with a built-in video camera, speakers and wireless-N networking.

Starting at $599, the mini measures only 6.5 inches square by 2 inches high. It comes with a 2 GHz processor and up to 4GB of memory. Apple claims it uses 10 times less power than a typical desktop PC.

The Mac Pro uses new super-fast Intel "Nehalem" processors that Apple claims make its flagship machine up to twice as fast as the old model. Pricing begins at $2,499, $300 less than the old version. The new machine also includes a high-performance graphics card that Apple said provides "three times greater performance," and an updated interior to allow easier access to components for expansion.

Apple also updated its popular wireless networking base station, the AirPort Extreme, to allow users to have simulatenous 2.4 and 5 GHz dual-band networking, as well as the ability to give guests a password to access your network while still maintaining security for personal files.