It's very powerful to combine Flame Mail with an Ice Helm or Ice Shield, since the pieces' weaknesses will be cancelled out by their opposed elemental resistance. You'll find a mix of Ice and Fire attacks in the Subterranean Lake, so you may want to stick with the combination until you get to the Molten Cave (where there are no Ice attacks). Other than that, upgrade your Weapons as appropriate and prepare for the next dungeon. If you want to invest in level 4 Spells before moving on, sail east and around the outside of the continent to the Village of Gysahl.
You'll be able to access the Treasure room a bit later, and it is chock-full of goodies. Most of them can only be used by Fire Crystal Jobs. Speak to the dwarf near the entrance after defeating the Salamander to clear the rock from the path leading to the Treasure. You may need to visit a fat chocobo to store all your extra crap afterward.
You'll be able to access the Treasure room a bit later, and it is chock-full of goodies. Most of them can only be used by Fire Crystal Jobs. Speak to the dwarf near the entrance after defeating the Salamander to clear the rock from the path leading to the Treasure. You may need to visit a fat chocobo to store all your extra crap afterward.