Ah... I know what I can suggest then. It's OpenGL, like I said Direct3D is hard to find...

Delphi3D. Tom released a ton of demos and the source you can play with. Well the suggestion is until you find a decent 3D Engine try just familiarize yourself with other techniques and 3D methods used.

If nothing else when you do find a decent 3D engine to use, you'll know some things about what it may or may not be capable of doing.

Failing that maybe try pullingthe ear(or eye) of tux. He may be able to give you some hints. He's fairly new into 3D aswell if I recall.