CornBurrito, I gotta ask, and this is not a loaded question or an attempt to make you 'look like a n00b' or anything stupid like that, but is GW2 your first MMO? It feels like most of your questions are asked with the goal of making sure you don't get kicked from groups, guilds or are just 'playing wrong'.
Cuz you've gotta unlearn that crap. GW2 is laid back as hell, and GAFGuild perhaps even more so. Play the class that's most enjoyable, not the one you think will get you in groups easiest. Nobody in this guild is going to say "You can't come because you're 'Profession X'" and if they do let me or one of the other officers know about that bullshit.
Play what's fun, for fun. Wander around, do events. Don't rush to 80, don't worry about farming stuff yet. Forget everything you know about MMOs, whether you've played one before or have just heard about them. Guild Wars 2 is different, and that's why we love it.
/mini-friendly-rant.