Today I tried PloneOut. It is a buildout recipe to install Zope 2.10 + Plone 3.0 and some other products. It works like a charm.
The buildout tool makes the process of installing complex software as easy as a click.
Here are the steps:
$ svn co https://svn.plone.org/svn/plone/ploneout/trunk ploneout
Go and drink a cup coffee
$ cd ploneout
$ python bootstrap.py
$ bin/buildout -v
Put on your watch and your shoes, head out the door and walk 2 km. When you come back you will find your plone 3.0 ready for you. I regret I didn't so.
$./bin/instance fg
point your browser to:
http://localhost:8080/manage

add a plone site and try the edit-in-place feature.