[myspacepro]

Your collection of so called "Dravidians" is in no way homogenous as far as racial type is concerned. I will go on to classify them and investigate the point in question.

http://nakorika.files.wordpress.com/2008/12/10.jpg

This individual is in no way fully Europid/Caucasoid, but rather Indo-Melanid, and more on the Weddid side than Gracilindid.
http://www.celebritiesprofile.info/i...ugu_157_16.jpg She is predominantly Grazilindid with very slight Weddid. And definitely more of a "Northern type" than "Southern".
http://www.come2india.org/images/telugu-wedding.jpg This female is a very good example of a GracileIndid of rather standard type best suited for tropical-urban Indian climate and conditions, alongside being balanced, energy efficient and progressive. Sexual dimorphism tends to be high in such GracileIndid types. I see the link tells us that she is a Telegu, but seldom to average Telegus have such long faces. Generally it's only the Brahmins and the Reddys who tend to have long faces. In fact the Telegu Brahmins are known to carry a very pure GracilIndid strain. This woman is also more of a "Northern type" than Southern.
http://www.bharatwaves.com/pictures/..._Dance_141.jpg Classical dancers tend to be Brahmins, and considering she seems to be Telegu once again, she might well be a Telegu Brahmin who, as I already have mentioned, tend to carry Gracilindid in a very pure form.
http://www.koodal.com/cinema/gallery...0723229123.jpg He is Surya, a Tamil actor. He hails from the Gounder caste, who are a socially dominant agricultural caste, but also used to hold Warrior professions, albeit not being acknowledged as authentic Kshatriyas by the Brahmins of the same area. He is racially predominantly Caucasoid, but technically rather in between, so I would classify him as Indo Melanid (~pred.GrazilIndid).

http://4.bp.blogspot.com/_xFP6s39OUY...0/Aarthi_2.jpg This woman, as per skin tone exhibits GracilIndiform, but judging by her facial features is rather Melanid. So still, rather Indo Melanid (~GracilIndiform)
http://tamilo.com/Cinema/Tollywood/Bharath_actor.jpg He is Bharat, a Tamil from Tiruchirapali, Tamil Nadu. Caste - unknown. He is most representative of this set, but even he is still more of a "progressive", more specialized Melanid than average Southern Indians tend to be.
Bharath_2.jpg
How do you not identify such looks as Caucasian? Because Southern Indians for the most part, are not purely Caucasoid genetically or phenotypically. Its actually even very hard to find a purely GrazilIndid South Indian. Infact Southern Brahmins themselves are often not purely Europid, but tend to have a distinguishably "Northern" look which makes them stand out for the most part, but are predominantly Nordindid-(robust) IndoBrachid with Grazilindid/Weddid influence. But the Brahmins, wherever they may be tend to have individuals who represent the "pure" form of the Europid influence of the respective area. For example, it will be easier to find a fully GrazilIndid Tamil Brahmin but not a fully Grazilindid generic Tamil, even though Grazilindid is the main Europid influence for Tamils and not Brahmins.Brahmins in those regions i.e the Bengali and Tamil Brahmins.

Robin Goodfellow (now banned user), originally a Vellalar (socially dominant agriculturalists from Tamil Nadu) before Christianity, himself was rather a GrazilIndimorphic Melanid type but was genetically less Europid than he appeared.
23andmespurt5.jpg

So most South Indians, are rather in between i.e Indo-Melanid, with Tamil Nadu being more Weddiform, Andhra and South Karnataka being equally Grazilindid and Weddid with IndoBrachid forming an element of the population, Northern Karnataka being IndoBrachimorphic (~with the whole Malabar coast having this influence) and finally Kerala that is Grazilindimorphic due to the dominance of the Nair, Tiyans and Pulayans castes, with the rest of the population mainly consisting of Semitic immigrants like the Nasranis and the Mapplas.
tamil8hx5.jpgtamil7qk3.jpg

Even the Europid/Caucasoid component of Dravidian speakers is regarded as a non-classic Caucasoid by many.

But I agree with Reality Check's estimate for the most part as far as their Autosomal scores are concerned. I would say it is 70-75% for North Indians and 50-60% for South East Indians. (~West Eurasian scores)