Browsing Upcoming.org, looking for stuff to do in NYC. So far I have...

Free stuff:

Deerhoof and Beirut: Some Williamsburg public pool
Prefuse 73, DJ Spooky, Talvin Singh, Asha Puthli, Guru: Central Park

Cheap stuff:

Cool jazz place.
Dada.

I assume a good bit of wandering will take care of the rest of my time.