I'm really interested in learning South Indian languages and would eventually like to learn several of them. However, I'm not sure which one I should do first. I've narrowed it down to Tamil or Telugu because I feel like I'll have the best chance to find good resources for one of them. If I eventually want to learn both (as well as others), is there any reason to choose one over the other to learn first, or does it not really matter? (If it makes any kind of difference--though I doubt it does because they're not from the same language family--I already know Hindi.)
Also, if anyone has any recommendations for good resources for either, please share. :) Thanks!