I loved this season. Grey's is so interesting because on the surface it seem like fluff but on second viewing,Grey's Anatomy DVD there is more to it than that. I can't wait until the 5th season arrives and the start of the 6th season.Addison Montgomery out at the end of three seasons was particularly Entourage DVD sad that his character has added much to the series. However, the new characters introduced in season four unknown territory for Shonda Rhimes fascinating treat. Erica Hahn,Walt Disneys 164 DVD played by Brooke Smith, adds an interesting dynamic to the season as he replaces Burke as chief of cardiothoracic surgery at Seattle Grace. His presence threatens ego Cristina Yang, and even has a character questioning his sexuality.One Tree Hill DVD Meredith Grey's sister, Lexie (played by Chyler Leigh), is at Seattle Grace and became a series regular in season four. Their presence is a story arc might be of interest for Meredith,Supernatural DVD as it becomes the first member of his family, who admires and loves you unconditionally.New relationships are built, old ruins, and staff about the challenges facing Seattle Grace that profoundly affects their lives in a season that reminds us why we started watching Grey's in the first place!