NYC subway is cake compared to London.

This question (what do i do in NYC?) is one of the toughest to answer. There is just to much to do.

The Marquis is a good choice, but it's so busy and congested, you might want to stay at one of the Sheratons in the 50's on 7th Ave. They're only a couple of blocks from Times Square, but you get to avoid the craziness (the novelty wears off very quickly) plus they should be less expensive and nicer than the marquis.

In terms of theater, just pick a couple of shows, and then hit the TKTS booth in times square the day of the show to get tix (if you don't want to buy in advance).

Pick up a "StreetWise Manhattan" map as soon as you get here, any Barnes and Noble or a newspaper stand on any street corner will have them, it has all of the points of interest in NYC on it as well as the subway map on the back.

If you can give me an idea of what else you're interested in I can give you some more detailed ideas.

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