I am fervidly assimilating this new .NET 3.5 technology as the Visual Studio “Orcas” beta has a well developed editor. I found the march 2006 CTP bare-bones and grueling to work with.
Information is coming out daily but if I were you I would head to http://msdn2.microsoft.com/en-us/library/bb425822.aspx#linqtosql_topic4. This is all you need to get started, most people posting tutorials on the net are reading this and then modifying it’s contents.
The article is a real Beaut!