Imbroglio, I laughed out loud at your post! Right on the money, man!
Wanting to become a merc reminds me of the movie "Fight Club"--a bunch of guys who are really bored and tired of being part of a pussy generation where nothing exciting ever happened, so they have to go looking for trouble. Probably the same reasoning that took place before WWI--a lot of Americans got involved long before the US did. That was also in some movie with Brad Pitt, I think. Pretty idiotic.
Same with the Spanish Revolution, except most of the volunteers were Marxists. Completely idiotic.
Honestly though, the notion of going to war due to boredom really bothers me. Go drive stock cars or fly airplanes or race motorcycles. There are enough ways to get the thrills you want right here. You just aren't trying hard enough. Being barbaric for the sake of barbarism is just plain evil--leave the naked aggression to the Hitlers, Stalins, and Pol Pots of the world.
Plus, I'll bet most mercs get ripped off or worse. Besides, you'd have to have some kind of military credentials like former SEAL or Green Beret just to have credibility. We're talking about some ruthless, rough people. Maybe you already have some experience with that though?
If you're still hard set on this path, might I suggest Colombia? They're facing an imperial invasion of catastrophic proportions, right now. Anyone care to guess at which empire is invading?
Otherwise, I guess you could try out for the French Foreign Legion. They're pretty badass. Not sure they are up to much these days except guarding rocket launch facilities in French Guyana (sp?) though (major yawn!).
Or go invade Canada--Quebec has been trying to secede. LOL! On a good day our Salvation Army could kick Canada's ass.
Finally, you could just stay here and kidnap the children of the rich and powerful--they're not hard to find. Probably good money in ransom and plenty of shoot-outs with the feds.