I'm getting through the first chapter of Practical Algebra. It's a pretty good book for those who need a math refresher. I'm itching to code, but I really want to build a good foundation. I think the math fundementals will pay off exponentially later and accelerate my 3D learning curve.
I also checked out the Ogre 3D engine as an option for the simple platform game that I am designing. There are some pretty cool projects going on with that engine. Including an adventure game called Ankh from a group called Deck 13. You can check it out here: http://www.deck13.com/english/ankh.html.