I had watched the CPU numbers drop on portable Mac computers for some time with frustration. At first, my friends said the extra cores will give me more performance. Pd isn't multi-threaded! Then Intel started the auto-overclock trend. Does Pd cause a CPU to run at its maximum speed now? If I were to get a computer that is 1.8/2.6, is it only going to run at 1.8? Can I get Gem to run on a second core with pd~? These are all unclear issues for me and always delay me when I'm considering an "upgrade".