See:

http://www.apple.com/aperture/specs.html

Minimum System Requirements

One of the following Macintosh computers: - Power Mac G5 with a 1.8 gigahertz (GHz) or faster PowerPC G5 processor - 17- or 20-inch iMac G5 with a 1.8 GHz or faster PowerPC G5 processor - 15- or 17-inch PowerBook G4 with a 1.25 GHz or faster PowerPC G4 processor

1GB of RAM

One of the following graphics cards: - ATI Radeon x600 Pro or x600 XT
- ATI Radeon X800 XT Mac Edition
- ATI Radeon X850 XT
- ATI Radeon 9800 XT or 9800 Pro
- ATI Radeon 9700 Pro
- ATI Radeon 9600, 9600 XT, 9600 Pro, or 9650 - ATI Mobility Radeon 9700 or 9600
- NVIDIA GeForce 6600 LE or 6600
- NVIDIA GeForce 6800 Ultra DDL or 6800 GT DDL - NVIDIA GeForce 7800 GT
- NVIDIA Quadro FX 4500

5GB of disk space for application, templates, and tutorial DVD drive for installation

- - - - - -

Obviously, very few Mac users possess machines with these specs. I will say, if someone can make using RAW as easy and powerful for post- processing as standard 8-bit processing, and makes the decision that a new generation of hardware is the most feasible, effective way, then hats off to them. Digital photography with scores of amateurs and prosumers, as well as professionals, will fuel the demand for the "next best thing". Then, the high dynamic range Cinema Display will come out, etc., etc. Watch the QT movies - it looks pretty cool IMHO - we'll see what people say when it hits the streets.

kirk Mac user