I have to second all of the people who are telling you that the military will send you where they want you to go. None of the promises the recruiter makes will hold up. They will say whatever it takes to get you into the services. I seriously considered enlisting into the Army a while before I started posting on this forum, but decided against it because it is such a grave, final, irrevocable decision, and most people seem to regret joining the military.
It doesn't matter if you have the skills to be a computer technician. They own you once you sign the paperwork. You might well spend eight years (with stop-loss) guarding some remote, desolate air base on the Afghan-Pakistani border against Taliban attacks; not what you envisioned.
A final thing to be wary of is the fact that once you enlist, in the fine print of any military contract is a clause stating that they basically own you, for life, if a "national emergency" deems that you need to be recalled to fight. You can be 55 years old and retired, eating dinner with your family, when a uniform knocks on your door calling you back into active service. That's happened tons of times during Iraq. Learning that pretty much permanently killed any desire of mine to enlist.