These are just so I can refer to them later.

Foo.hbm.xml

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
				   assembly="YOUR_ASSEMBLY"
				   namespace="YOUR_NAMESPACE">
	<class name="Foo" table="foos">
		<id name="id">
			<generator class="identity"/>
		</id>
		<property name="Bar" not-null="true"/>
	</class>
</hibernate-mapping>

nhibernate.config.xml

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
  <session-factory name="MySessionFactory">
    <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property>
    <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
    <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
    <property name="adonet.batch_size">16</property>
    <property name="current_session_context_class">web</property>
    <property name="proxyfactory.factory_class">NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu</property>

    <mapping assembly="YOUR_MAPPING_ASSEMBLY"/>
  </session-factory>
</hibernate-configuration>