Hi, I have a Pentium 4 with 3 Ghz, 1 GB RAM, 160GB blablabla... But I am not very happy with the system... Now I am thinking about selling it, and buying an imac or an ibook. The ibook would be great because it is mobil. But the Imac is also great because it is fast? My question is, is there a big speed difference between my Pc and the Imac or the Ibook? I am using Photoshop CS (max. 200MB Files, but normally 50MB) Freehand MX (max. 10-15 Sites, for commerical stuff) and in the future some work with Dreamweaver MX. Also around 2000 Songs in Itunes, some surfing in the Internet, working with my Wacom Drawpad etc... It could be that i will plugin a USB Keyboard, i mean piano, playing some simple stuff on it. Does the Ibook has a Microphone IN? AND, what about the Future, Tiger, 64 BIT, Core Image??? Thank you.