After the Sealed Cave and Mythril Mines, you won't be seeing undead for a while, and you're probably high enough level that a White Mage is significantly better at healing than a Red Mage, so you may want to reconfigure your party at this point.
The gear for sale here is the same as in Kazus, but you can buy level 2 Black Magic in the magic Shop. (Note that you'll find a free copy of Blind shortly.) Once again there are a lot of Treasures to find in town, most of which are in Cid's secret room. To gain access to it, head to the northeast corner of town and enter the water, following it to a grassy hill at the end where you'll find an Elixir. Give it to Cid and he'll let you have his Treasures.
The gear for sale here is the same as in Kazus, but you can buy level 2 Black Magic in the magic Shop. (Note that you'll find a free copy of Blind shortly.) Once again there are a lot of Treasures to find in town, most of which are in Cid's secret room. To gain access to it, head to the northeast corner of town and enter the water, following it to a grassy hill at the end where you'll find an Elixir. Give it to Cid and he'll let you have his Treasures.