Crystalis
My favourite one of these is called Crystalis. It takes everything that made "The Legend of Zelda" awesome, and makes it better. It's a non-linear action-rpg and it's pretty fun. There are a bunch of monsters, dungeons, weapons, items, spells, towns, etc. The four main swords are the Swords of Wind, Fire, Water, and Earth (I think; I didn't get that far yet). They each have 3 powers with the use of some items, and they can be used to get rid of obstacles (i.e, Sword of Fire melts ice).
Cocoron
This is basically a Megaman clone, and you can choose "parts" for your character and traverse a landscape with some neat music. That's all I really know about it. I just wanted to mention it because I really like the idea.