• Desktop
  A neat place to work.
  
  Leopard brings a stunning new look to the desktop, and stacks provides a great new way to keep it clean.
  
  
• Finder
  Give your files the rock star treatment.
  
  See your files right in the Finder and browse through them with Cover Flow. And make distant machines look like they’re nearby with the new sidebar and Back to My Mac.
  
  
• Quick Look
  Look before you launch.
  
  Instantly view full-size previews of your files without opening an application.
  
  
• Time Machine
  A giant leap backward.
  
  Automatic backup is now built right into your Mac. With a simple one-click setup, Time Machine keeps an up-to-date copy of everything on your computer — and if you ever need to recover a lost file, Time Machine will virtually take you back in time to find it.
  
  
• Mail
  Think outside the inbox.
  
  Add style and elegance to your email with stationery, and stay organized with notes and to-dos.
  
  
• iChat
  Not being there is half the fun.
  
  Connect face to face with easy-to-use, high-quality video conferencing in iChat — now featuring fun Photo Booth effects, backdrops, and iChat Theater.
  
  
• Spaces
  Room for everything.
  
  Group related application windows into separate spaces and switch between them with ease.
  
  
• Safari 3
  Still the world’s best web browser.
  
  The fastest browser on any platform now has better tab control, improved Find capabilities, inline PDF controls, and more.
  
  
• Parental Controls
  Safety first.
  
  Easily set up your Mac so that your children can safely surf and communicate over the Internet.
  
  
• Boot Camp
  Run Windows on your Mac.
  
  Run Windows XP and Windows Vista at native speed on your Mac.

Specifications

• Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor
  
• 512MB of memory
  
• DVD drive for installation
  
• 9GB of available disk space
  
• Some features require a compatible Internet service provider; fees may apply.
  
• Some features require Apple’s .Mac service; fees apply.
  
  Feature-specific requirements
  
  
• Time Machine requires an additional hard drive (available at The UCI Computerstore).
  
  
• Photo Booth requires an iSight camera (built-in or external), USB video class (UVC) camera, or FireWire DV camcorder; and an Intel or PowerPC G5 processor. Backdrop effects require an Intel Core Duo or faster processor. Backdrop effects when using a DV camcorder require fixed focus, exposure, and white balance.
  
  
• Boot Camp requires a Mac with an Intel processor and Windows XP Service Pack 2 or Windows Vista (sold separately).
  
  
• Screen sharing in iChat and in the Finder requires a 128-Kbps Internet connection (300-Kbps recommended).
  
  
• Front Row requires a Mac with built-in IR and an Apple Remote.
  
  
• DVD Player requires a 1.6GHz processor or faster for improved de-interlacing.
  
  iChat requirements
  
  
• Audio chats require a microphone and a 56-Kbps Internet connection.
  
• Video chats require an iSight camera (built-in or external), USB video class (UVC) camera, or FireWire DV camcorder; and 128-Kbps upstream and downstream Internet connection.
  
• Photo Booth and backdrop effects require an Intel Core Duo or faster processor.
  
• Backdrop effects when using a DV camcorder require fixed focus, exposure, and white balance.
  
• Some iChat features offer better performance and quality with higher system capabilities.
  

More details
Developer tools require 1GB of memory and an additional 3GB of available disk space.