Aaah Paris.
For coffee, la caféothèque is a good place. And you can visit :
Espresso E Ristretto
67, rue de Charenton
75012 Paris
If the owner is available, you may even have a demo of the bacchi espresso machine, people find the results quite impressive.
And for coffee places, that's about all.
On food side, there are plenty of GREAT restaurants, it all depends on your budget. Too bad, I'm not in Paris anymore, I would have made you discover a very good crèperie in Montrouge.
If you have a week end free, you can visit Brittany, it's a 3h30 trip in TGV from Paris, I have a probatino, we have a spare room and Dom is near (one can't have it all, right ?
)