I've always wanted to be a barista.
Kind of like in Starbucks? I love espresso-based coffee drinks!
Yeah, but i'm clueless as to what kind of training I would need.
I believe you have to learn how to use a commercial espresso machine, some being easier push-button machines and others being more involved manually.
That sound like fun. I've always wanted to learn how to do Latte art. 
That would be fantastic! It's quite difficult to do consistently because of the conditions needed for both the espresso and the milk used.