3D Graphics

[Yash8976]

Hi Everybody,
I'm a 2D c++ programmer who has made motion games like tetris, pocket tanks, snake and now im think of jumping to 3D graphics.
So my question is what to start with ?

Directx, opengl or any other library.
I'm just in school, not college so its difficult to manage only computers(physics n chemistry are horrible) so i was hoping smbody could suggest a good starting point for 3D graphics and a library which is manageable.

[Fransje]

Have a look into these:
http://irrlicht.sourceforge.net/
http://www.ogre3d.org/

[Yash8976]

thanks man,
lot of people told me to begin with ogre, guess now i dont have a choice :P