My favorite French radio station is Le Mouv’. I started listening to it when I lived in Toulouse, and before I left I managed to find it on the internet. It’s a fairly good mix of music, mainly alternative rock (which they call indé, an apocope of indépendant), about half in French and half in English, with the occasional song in another language. Unfortunately, the connection can be a bit spotty. 🙁
I tend to put Le Mouv’ on in the morning while doing a mots fléchés, which I’ve become addicted to – I have to do one every morning – and then keep listening while doing non-work stuff.