This is a thread about matrices, not about API choice.

CosmicDashie, I suggest a copy of Mathematics for 3d Game Programming and Computer Graphics. It's a bit expensive, but it's worth every cent because it explains everything about a ton of different topics from vectors to matrices all the way to the more advanced stuff, and how it all fits together. And it will be a great reference to have on your shelf.

the book you mention here, is this the one? http://www.amazon.com/Mathematics-Programming-Computer-Graphics-Edition/dp/1435458869/ref=dp_ob_title_bk

Glad i posted about this here though, lots of helpful websites, thanks everyone! gonna be something i really need to learn now

also slicer4ever...
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You could try this linear algebra lecture series by Gilbert Strang, which I've watched numerous times. It's not specific to game development, though it does discuss computational aspects. It starts out reasonably gently and follows a logical path to more advanced topics, and has the advantage that Prof. Strang talks like a mathematical Jimmy Stewart. :)

http://www.youtube.com/playlist?list=PL49CF3715CB9EF31D

You could try this linear algebra lecture series by Gilbert Strang, which I've watched numerous times. It's not specific to game development, though it does discuss computational aspects. It starts out reasonably gently and follows a logical path to more advanced topics, and has the advantage that Prof. Strang talks like a mathematical Jimmy Stewart.

http://www.youtube.com/playlist?list=PL49CF3715CB9EF31D

Oh, man, I think I had him for that class ... but he looked a lot younger. Now I feel old.

Ha ha! I think he's hilarious. I love it when he points at a matrix and says things like "now I, er... will I, ah, will I invert this now?" - he's so George Bailey it's unreal!