Thank you so much for this easy tutorial...helped me a lot and also a bit with the lighting. Oh and how did you get the glass caustic shadow?? My shadows have no reflections like yours. And i could not find Global Light Properties, Raytrace/Mental ray materials or all those options below Caustics (Indirect Illumination) (sample filter radius kernel). Another query...your material box has a chequered backgound...mine is black. lol sorry for being soooo nooby n incompetent!