I would NOT stay in the area of the Gare du Nord. It is one of the worst areas in the city limits, in my opinion. I lived in Paris for years, was just there two weeks ago and do not think you want to stay there. THere is a whole lot more than just panhandlers- pickpockets in particular are a worry if you are loaded down with luggage. I have been pickpocketed at this station, and was aggressed (and slapped) by a man looking for a handout. It is fine in the daytime, although pickpockets are a problem everywhere you go in Paris, especially if you have luggage. In any event, if you come into the Gare du Nord on the metro, you will come up through the subway into the station, which I find preferable to walking in off the streets at that time. If you take a taxi, you'll be fine, too. Go to www.ratp.fr and click the British flag at the very top, right side of the screen for English. You can get metro stops and timetables there. There are four lines going into the Gare du Nord, so you could stay in many parts of the city without having to change lines. (Paris metro has very few elevators, although escalators are becoming more and more common.) By the way, the subway offers a Paris Visite card for unlimited travel for one day, and a Mobilis card which offers almost the same deal, but for a few euro less. I buy the Mobilis to save, but if you want to go outside the perimeter to zone two, buy the Paris Visite. (You would probably only do that to go to La Defense.) We recently stayed at the Marriott Rive Gauche Conference Center and were happy ($101). While it is a good trek from the Gare du Nord, the RATP site shows only 24 minutes. You would, however, have to change lines, which could be a pain with luggage.