Golden Sun is considered one of the finest, or possibly the finest original RPG for the Game Boy Advance. It was published in 2001 by Camelot Software (also the creator of Shining Force). It has the unique element of Djinn, which can be used either to improve a character's stats, or to directly fight the enemy.
There aren't any more good Shining Force games coming out anymore, but Golden Sun is a good substitute. It lives up to Camelot's quality standards.
You are Issac, and travel the world with your friend Garret to find the missing Elemental Stars, and rescue your friend Jenna. (better summary and updates to come soon)
I can't offer this game for download, since it is for the Nintendo Game Boy Advance, and is still in production. I will make it avalible once the game's production is stopped, and Nintendo announces their next handheld gaming system.