I spent some time yesterday speaking with eLearn conference organizers and hotel staff -- reception then restaurant staff then banquet staff. They were all very helpful.
The space they recommended for us that wouldn't involve moving rooms every hour or rental/staff fee, and that has comfortable chairs and round tables for smaller group discussions, is the bar in the Sheraton Wall Centre north conference building. They don't start serving drinks until 4:00 pm, so it's a fairly quiet area, especially on the last day of the conference.
So the bar it is! See you there at 1:30.