hey all.
Not sure if it's new or not, but I just stumbled upon it and found it
really useful. Its an article published by InfoQ that is available
for free PDF download, or purchase for about $30.
You can find your way to it here:
http://www.infoq.com/minibooks/grails-getting-started
You do have to register with infoq to download it, but hey they
publish alot of good stuff.
J