It's been annoying me a bit, but possibly add a 2-4 pixel padding on the left, oh and the new post textbox I'm typing in right now like 2 more px onthe top? XD Its too close to the border imo...
I personally don't see what's wrong with the current quote box. It doesn't really matter what you think of it at the moment anyway, since the site admin hasn't been online for quite some time now. Well, he has been online, but he didn't actually post or change anything to the site at all lately. So even if this would be changed, it would take a while.