a dog is MAJOR commitment. i agree with steph by saying you have to think in long term. I'm finishing my last semester of college, live by myself, and have plenty of time to spend with Luka. I wanted a husky three years ago but it wasn't the right timing. Dogs are fine being crate trained, every dog my parents have owned has stayed put up while we were at work. If you decide to take this path though you MUST be prepared to spend the majority of your freetime with your dog. (then again why wouldn't you want to?)
Just don't make a rushed decision, think it through.