I recently bought a MacBook Air (13", 256 GB SSD, 4 GB RAM, 2.13 GHz) and a Canon S95. My prior digital camera was several years old and was showing its age. It was very difficult to get low-light shots to turn out right, and most of my pictures were low-light. The S95 is a godsend. I’ve only tried it out a little bit in my apartment so far, but even using the flash in near darkness (in my bathroom), the pictures look like they were taken with all the lights on.
I think the next home computer setup I’ll have will be a MacBook Air combined with a wireless keyboard and mouse and an Apple 27" display. I like the idea of being able to take my whole digital presence on the go with me, but be able to plug in for some extra screen space if I need it. Having a dedicated computer for the desktop seems like overkill these days.