"Postcards" in Staten Island looks outstanding:
http://gothamist.com/2008/09/11/stat...1_memorial.php
I find the Holmdel, NJ 9/11 memorial well-intentioned but a little creepy:
https://secure.flickr.com/photos/sheenachi/189981989/
The Firemen's Memorial in Riverside Park was first dedicated 88 years before 9/11, but has become connected with 9/11 for obvious reasons:
http://www.nycgovparks.org/parks/riv...ghlights/12921