Praise Glory! Another convert! hehe. Another soul saved from the Dark Lord Bill Gates. (kidding) Glad I could be of help to you. The speed enhancements for certain apps includes ALL Adobe products. The "Altivec" chip on the backside cache of the G4 processor is specifically designed for this purpose. Even on my 450mhz G4 Photoshop and After Effects scream along in real time, even with numerous filters applied. The Bryce speed enhancement come from raw number crunching CPU speed, over a billion computations per second or something like that. The backside cache again helps shorten the path that the data has to travel. I'm also pretty sure that OSX will allow you to use many of your PC apps on your Mac. I think you'll really enjoy it.