I moved away from typed DataSets and I (happily) never looked back. I am looking into NHibernate for persistence of my objects, and would like to see some text such as 'NHibernate for (DataSet) Dummies'. Some text that will assure me that I will be able to seamlessly update data islands, have possibilities of class inheritance, and so on...
Check out Summer of NHibernate. I'm pretty new to NHibernate myself and this helped me get started.
Your first NHibernate based application is another one that I liked a lot as well.
Try http://nhforge.org/doc/nh/en/index.html#quickstart-intro There are a lot of other how tos on the net but this is simple and focused only on using nhibernate
If you're new to NHibernate, I'd encourage you to give the XML a pass and go straight to Fluent NHibernate. They just went 1.0 recently and I found it pretty easy to pick up. Documentation starts at http://wiki.fluentnhibernate.org/Getting_started.
I agree with jamesaharvey, "Summer With NHibernate" is a very very very good start
I didn't try (yet) but you can look NHModeller (it's a code generator) announced yesterday on Fabio Maulo (NHibernate project leader) on his blog