Astral Knights/ The World Engine question

[zealotic]

Hey, I recently read the space marine codex cover to cover when looking for what chapter I wanted to play and was inspired by the tail of the Astral Knights, does anyone know of any other fluff about the Astral Knights, armor schemes, or short stories, even really old out dated stuff, about the chapter so I can get a better feel for who these guys are?

[Eldrad]

I haven't really read more than that story. I did read on lexicanium.com (link to page) about them, a bit more in depth about the story and what they did after, i would suggest Google them to see what others did

Link: http://wh40k.lexicanum.com/wiki/Astral_Knights