In response to some questions from last week, yep -- we'll be heading for some Firelands achievements after this (and the conclusion of our Mountain O' Mounts guide), but I did want to finish our series on the Dalaran fountain first.
The gold coins are arguably the most interesting of the bunch, or at least they concern most of the more significant lore figures in the World of Warcraft universe. As before, getting all of the coins will grant you A Penny For Your Thoughts, Silver in the City, and There's Gold in That There Fountain, with the completion of all three granting The Coin Master and one more notch toward Accomplished Angler.
EDIT: This guide is now finished! You can find the full series here: