What are the typical rush hours for food?
That's good to know.
One thing we noticed in Amsterdam was the difficulty in finding a reasonable breakfast that didn't cost an arm and a leg. I'm guessing in Paris there are patisseries and similar dotted around all over?
Nowhere near Gare du Norde... The place is a complete dive. I'm sure you can't really go too wrong with somewhere central-ish for a 4 night stay. Near le louvre maybe? I'm not really to experienced with Paris so could be wrong.

My girlfriend and I are off for a 3 day city break in Paris towards the end of August and we're staying pretty much slap bang in the middle of the city, about 200m south from Ile de la Cite.
We're taking the Eurostar and attractions will include the Eiffel Tower, The Louvre, Notre Dame, the catacombs, a boat trip and the Palace of Versaille (and probably some other stuffs which I forget now).
This time last year it was a similar break to Rome, which was amazing, so I'm hoping Paris will be similar.
Yes, it makes no sense what so ever to stay right next to a significant train station with good metro links to every where in the whole city... Why would anybody want to get off the Eurostar, dump their bags next door to the station and immediately get on with their holiday
Mercure Paris Terminus Nord
We are thinking about going to Paris for August bank holiday weekend, where did you find all these offers?