Shoutbox

Already checked into this. It's be as simple as submitting a query to http://www.firstgov.gov/fgsearch/index.jsp (this is what the form on the link above uses) and supplying it with a few hidden input values. You could then scrape the resulting responseText for the information

Let the user specify the 4-digit/letter code in a prefs windows and bingo. Only problem is that I'm too busy atm to do it