How does using the LCL stop you from using D3D or OpenGL?
Not, but the fact that they are LCL demoes might :-)

If you look at my website I have a sample for Delphi, their is also a version of FPC if I can find it some place
Delphi is also good. While I'm not so into graphics, I still know my way in FPC/Delphi :-)