3) Any starting advice? I usually like to play mages in RPGs, but for a change I want to choose a physical class: yay or nay? (Or is it an utterly stupid question?)
I've just recently returned to the game and my experience is pretty limited, but regarding classes, practically all can be upgraded to more role-focused jobs at level 30 if you have a specific different class at level 15.
In some case, these class combinations consists of a physical and a mage class, so you might want to look into the jobs that are unlocked by such a mix and see if any pair suits you.