Having served my time as a Ranger in the army, I can tell you that combat MOSes aren't all that bad. The food is edible, will keep you alive, you're the most heavily armed son of a ***** on the battlefield, and your training is better than that of say, an MP.
That being said, most combat MOSes don't train you in anything marketable, even though you do get great leadership skills (something that our government is lacking on all levels if you ask me), and because of this, you will likely advance rather far in whatever your chosen profession is.
If you're looking just for college, check into the National Guard. It's funded by the state, and has FAR better educational benifits than any other branch of service. Yes, you will be mocked by regular forces, but while they're off "defending freedom", you'll be nailing a hawt chick, and attending classes at a fine institution. Ok, maybe your ugly *** won't, but that's the dream of all you nerds anyway, so at least make half of it true.
Any other questions? Oh, yeah, you wanted to know what to say to the counsler, once you make it to MEPS, right? SHOW ME THE MONEY, *****! Oh, and if you want to be an "intel weeny", go for it. After your enlistment is up, you can transfer your experience into the FBI, CIA, or in some rare cases, the NSA, and get paid to look at people's mail, stare at old women in their underwear through their windows, or worse, all in the name of the facist government that is the federal branches of the United States.
I no longer hold any illusions about this government, can you tell?
Enlist if you want, you'll more than likely not regret it, and will likely love the experience that you get from it. Any other questions?