If you aren't already a regular listener to .Net Rocks, I highly recommend it.  Fun and informative--a great way to shorten a commute.  Recently I did an interview for the show which will be published in a couple of weeks.  Also coming up very soon is an interview with Oren Eini about nHibernate, so the next few weeks should be pretty interesting listening if you want to learn more about the Entity Framework and related topics.