about players speaking different languages:
Yes, it enhances the flavour of the campaign, but can also be quite annoying if people start doing it too much. I remember being in a game run by Olan where different people had 4 different languages going on, speaking half the time in a language others didn't understand. It was no fun, not for the players, not for the DM.
Also: if it's so much trouble that it takes you a week, then perhaps you shouldn't bother and just write that Malius says something in Sylvari, and send the translation to the players like you would now
Unless you WANT to type it out all the way, in which case you can do as you please, as long as your post comes in time. I don't want to spend too much time in this city.