FAA Flight Dispatchers Licence..
Hi..If you intend to work in Ops for the airlines then go have a look at Sheffield.com and their six week course in florida. Although thier is no required qualification for a G-reg airline it will put you miles ahead of guys who have just come from handling agents. I did the course in June/July this year and it is very good. You could also stay on afterwards and do extra days on International flight planning (i.e. outside the US..aimed at yanks but good I hear) and other stuff.
If you want any more info drop me a PM..
Steve