svjunkie

What's the problem you're trying to solve? It's hard for anyone to give useful advice without any more context.

That said, I recommend whichever language is easiest for you. I use R and have not fully learned Python, so I have an obvious bias. If you're performing complicated statistical analysis, I'd recommend R, but for more traditional programming, I get the impression that Python interfaces more efficiently with other languages.

Non-professional content creation apps are already available in the Chrome web store. Aviary has a suite of audio-visual tools it offers, including vector image editing (I don't work for them or anything).