FWIW, if you can stretch your budget then the new MacBook Air computers are getting outstanding reviews, and one tech analyst has concluded that PC manufacturers cannot compete with it, as it would actually cost them more to make it than Apple sell it for. My PowerBook is now eight years old and looks brand new, but it’s OS is no longer upgradable, so I’m going the Mac Mini route, getting the last version, taking out the optical drive, replacing it with a USB external then putting another HDD in the empty slot so I have a 1Tb internal storage computer that plugs straight into my 40″HDTV and my surround system, with a BT keyboard and Magic Trackpad. It’ll do everything I want a computer to do, I can remotely operate the desktop from my phone, and I’ve still got Adobe CS1 on the PowerBook should I want to do any graphics.
The Air’s are stunning computers, just not where I want to go now.