Rakso

LWJGL lets you use OpenGL so if u have not used that before it might be a slight learning curve.

But on the other hand it helps you do alot of things like creating your screen/window and setting your fps.

Javas own libraries should work fine but you will have to do stuff like the fps syncing for example yourself.

Personally i would pick going pure Java but thats my opinnion after trying LWJGL out by making a pong clone.

Realy good read, Its funny to see the comments from the people that did pirate the game

After watching Indie the movie i found Tommy Refenes to be one of the persons i look up too, 

And Jonathan Blow for the awesome Braid.

Welcome! Good to have you here.