Editing Final Fantasy 4 (SNES) text?

[mariosmentor]

I plan on either improving J2e's translation of the game, or translate the game from scratch. However, I'm an absolute noob when it comes to hacking, so I don't know where to start. All I know is that text is usually stored in a custom format, forcing you to use hex editors. But what tools do I need???????? Again, noob. Anyone willing to help?