Apple on Monday began shipping the dual-processor Power Mac G4 that was unveiled at the July Macworld conference in New York. As previously announced, the G4 features dual 800MHz processors, 256MB of RAM, an 80GB hard drive, and a SuperDrive, which is a combination CD-RW/DVD-R (compact disc rewritable/digital versatile disc recordable) combination drive, Apple said in a statement. Apple's SuperDrive allows users to burn audio and data CDs, as well as DVDs that can be played in many home DVD players. The G4 will also feature two FireWire and two USB (universal serial bus) ports, a built-in modem and Apple's iDVD, iTunes and iMovie 2 software, the company said. The dual-processor system benefits from the symmetric multiprocessing capability of Mac OS X, Apple's newest operating system which was released in March, Apple said. The Power Mac G4 can automatically balance the workload between the two processors, in effect allowing twice as much data to be processed in the same amount of time it would take a machine equipped with only with one of those processors. The Power Mac G4 is available immediately through Apple's online store, at retail stores and via resellers for £2,499 plus VAT.