Steve,
A great place for a meetup would be a restaurant in Grand Central Station. The subways go there as well as trains from the suburbs.
When Hugh Macleod came through NYC earlier this year we had a "Geek dinner" on a Saturday night with a bunch of bloggers. It was held at "Two Boots" which is in the basement of Grand Central. It was a great location... not alot of customers on a Saturday night so we were able to almost "take it over"!
On another topic ... I'm not sure if it will fit into your travel schedule, but we are having our Fall Toastmasters District conference on Nov.3rd in Fishkill, NY. I would be happy to arrange transportation from NYC for you & Erin if it worked into your plans and you wanted to attend!
Looking forward to meeting you and Erin !
Dave Wheeler
Toastmasters Div.A Governor, District 53, 2006-8
Div.A blog:
The Div.A Toastmasters blog !
P.S. I would recommend MOMA too!