Quote Originally Posted by Lindley
I'm curious why you're looking to learn DX9, rather than 10.

That's not to say I can help; I use OpenGL. (To which that statement does apply.) But I was wondering.
You have to use Vista to leverage DX10. As much as would like to move to 10, I prefer using XP, thus I'm still with 9. This is direct link to latest DX9 sdk. Keep in mind that it's about 420Mb in size.