Maven archetypes make it easy to set up a new CQ5 project: http://dev.day.com/docs/en/cq/current/core/how_to/how_to_use_the_vlttool/vlt-mavenplugin.h tml#Using Archetypes To Generate CQ Projects
This is fresh documentation...feedback is appreciated!
Scott, do you also have an official version of an archetype for a full cq project (tag library, config, content, view, etc)? The one at http://www.cqblueprints.com/xwiki/bin/view/Blue+Prints/The+CQ+Project+Maven+Archetype seems a bit more complete.
IMHO, a tag library would be better off in a separate archetype, probably hosted in Sling.
Not sure about a Maven archetype creating nodes under /content...
Those three are what we provide. I guess the multimodule project archetype is the closest thing to what you want.