The menu interface for the Magnum Monolith comes fully loaded with features:

• Supports nearly any emulator
• Advanced support for MAME®
• Multimedia screensaver which uses arcade games, video, and more.
• Theme editor for skinning the menu system.
• Easy setup wizard for the novice.
• Advanced configuration for the expert user.
• Sophisticated categorization of games.
• Search (quickly find the game, song or video that you're looking for).
• Zip/7-Zip support (keep your game collections tidy, organization and tightly compressed)
• Automatic updates
• Game statistics (know exactly how many times you've played each game)
• And many more features...

Not to mention that it just plain looks gorgeous.