Treat yourself to this long shadow 2 photoshop action offered for free by designer Aram Mirzoyants.
Here is Long Shadow 2 (photoshop action). Unbelievable cool 3D shadow effect. You can choose between 2 directions and 2 shadow length (255px and 85px). Easy to use. Pixel perfect. Ideal for 1024 px icons. Compatible with PS CS3 > CC.