If you're just getting started, solo your thief all the way to 15 in ghelsba OP and turn all the fire crystals into bronze ingots. They're Smithing lv2 cap, so you shouldn't have too many breaks.
Recipe is: 3 copper ore + 1 tin ore + fire crystal
And don't worry too much about crafting. You have to either be very very patient or have tons of gil to burn. Either way I wouldn't suggest smithing if you don't have about 200,000 gil to start with =p
edit: the thief part is optional. But you will need to solo your thief to 15 anyhow, so might as well do it there lvls 7-15 & get tons of fire crystals in return
