Where is My Utility Computing?

As I have written here a few times, pretty soon I need to refresh my current home computer setup. I am planning to setup a file server, probably based on OpenFiler. I'm going to set up a multi-purpose web/email server, probably using Solaris on x86 and zones. I'm going to install a proper groupware system, possibly using Open Xchange. I need a new laptop...I want a powerbook but I'll probably settle for a low end Dell to start. And I might get myself a Mac mini.

What a pain in the ass that's going to be to manage all that. Where is utility computing for the home user? SUN has their Sunray@Home project for their employees. There are some initiatives to roll out similar things for business users at other large companies. But what about the home user?