Mac OS X v10.5.7 or v10.6.3; Mac OS X v10.6.3 required for GPU-accelerated performance in Adobe Premiere Pro
2GB of RAM (4GB or more recommended)
26.3GB of available hard-disk space for installation; additional free space required during installation (cannot install on a volume that uses a case-sensitive file system or on removable flash-based storage devices)
1280x900 display (1280x1024 recommended) with qualified hardware-accelerated OpenGL graphics card, 16-bit color, and 256MB of VRAM
Adobe-certified GPU card for GPU-accelerated performance in Adobe Premiere Pro; visit the Adobe Premiere Pro system requirements page for the latest list of supported cards
Some GPU-accelerated features in Adobe Photoshop require graphics support for Shader Model 3.0 and OpenGL 2.0
7200 RPM hard drive for editing compressed video formats; RAID 0 for uncompressed
Core Audiocompatible sound card
DVD-ROM drive compatible with dual-layer DVDs (SuperDrive for burning DVDs; external Blu-ray burner for creating Blu-ray Disc media)
Java Runtime Environment 1.5 or 1.6
QuickTime 7.6.2 software required for QuickTime and multimedia features
Adobe Flash Player 10 software required to export SWF files and to play back DVD projects exported as SWF files
Broadband Internet connection required for online services*
Eh well that makes me feel like a bit of an idiot....
I thought I had read somewhere that it ran on PPC Macs - I guess I'll either have to upgrade computers or just stick to CS4