I'm looking at replacing my ancient G5 tower with a new mac pro, and looking at the options, obviously I have to decide between the single CPU quad-core or the 2 CPU "eight-core" solution. Of course, the eight-core model is way more money. I would imagine that it's worth it if your software uses those eight cores to their full potential, and here's my question: Does anyone know what software written for the top-of-the-line Mac Pros eight processor cores? Can you find a list anywhere online? I am striking out. Thanks.