Since Ubuntu Intrepid Ibex has been out for a while now, I thought it would be safe to start evaluating it. I haven't heard any horrible things about it, so we'll see how that goes.
I spent this morning setting up a VM and started building my standard image. I really love dpkg --get-selections and dpkg --set-selections. It allows me to keep somewhat of a standard build when I upgrade to a new version of Ubuntu by doing a diff on my package list from previous versions.