Classical Indian Dance, Bharatanatyam, Kuchupudi dance, kuchipudi dance dvd?!

Classical Indian Dance, Bharatanatyam, Kuchupudi dance, kuchipudi dance dvd?

I would like to know a few things about classical dance in general. It is said that the full movements (finished shape) are triangular in Bharathanatyam. Likewise, I would like to know the movement-shapes in other classical dances like Bharatanatyam, Kuchipudi, Oddisi, Manipuri, Mohiniattam (I believe it is circular, am I right) and Kathakali. Also are there any other classical dances besides these in India other than folk dance? and like to buy a DVDs/ CDs related this, so pl. give me some link to me.
Thanks

HI.
The finished movements in Bharatanatyam need not necessarily be triangular. All dance forms are geometrical. For example, in the Araimandi (half-sit) posture, the legs take the shape of a quadrilateral. All the classical dance forms are recognised by the variation in the nritta - adavus(dance steps). Abhinaya is almost similar. And all the dance forms have movements that are geometrical - straight lines, parallel lines, diagonals, circles, triangles, squares, and so on...Probably the Sama Pada sthanaka with the legs straight and the hands stretched perpendicular to the legs gives the impression that movements in Bharatanatyam are triangular. And i suggest you to get like this CDs or DVDs from the following sites. I hope that will be useful to you.
Thanks,