Tehilim Explained Video/Audio/MP3

At Naaleh you will find an excellent and free audio and video explanation of Tehilim in depth.  The provided link goes to a shiur by Rav Avishai David explaining the first Tehila inside, as well as translating the words according to tradition.  Each of the 150 Tehilim, poetically composed by Kind David and his court are explained in about 1 hour.