I am staying for another 4 days at the Marriott Hotel near the Borough Hall station, on Adams Street. I think the area is called "Downtown Brooklyn".
The hotel restaurant, "The Archives", is actually very good! My wife had the Crabcake appetizer and the Parsnip Gnocchi. They were $17 and $20, so $37 for dinner plus the $5.25 for my Guinness while I was waiting for it. (I had to eat at the conference buffet provided by the hotel, which was acceptable but nothing to write home, or to chowhound, about.)
I'm looking for other places near by, good places at prices not more than The Archives. Some cheap takeout places would be great. There was a Halal meat stand (chicken, donairs and the like) in front of the hotel, but it didn't appeal. I got slices of pizza at the corner of Willoughby and Adam, it was a Brooklyn Moment with the interaction between customers and staff. The pizza wasn't really that good, but it was the right choice for the time.
Anyway, there will be days when we want to go out for breakfast, lunch, and dinner. And there will be more days when my wife will want takeout because I am at the conference lunch or dinner. So takeout close (not necessarily cheap, but close) is a real priority, but moderately priced stuff at a more moderate distance would also be nice. Or things just a stop or two away on the subway.
PS there's a Morton's steak house nearby, but it doesn't open until Friday, and anyways I really shy away from chains, especially expensive ones.
Thanks everyone, it's been a great trip so far for food!