As you say, the usual suspects are worth checking. However I have yet to see the VS.com price beaten by them. As it is an UC fare (I assume from the price) I don't think it is worthwhile looking in your local bucket shop - they can sometimes get bulk purchases, but that would be on leisure fares which tend to be Y. You may also be able to get a bit of a better deal if you are able to be flexible on the dates. But as you say, the fare quoted is not bad. One of our US friends may know a little wrinkle from the other side of the water. One should be along in a minute....
The only other thing I feel I should say, is that you may find the price goes down until about 3-4 weeks before the flight. But this is dependant on booking levels, and of course there is a risk that it may go up (or even availablity may run out). You may want to join expert flyer (see link on forum home page) to see how availablity is coming along. Have a look in the exper flyer forum on this site if you are unsure what the data they provide means. At the end of the day it is a gamble, and this may not be appropriate in the circumstances.
