Not sure, if it's interesting at all. I am member of a team of a german delphi opengl community and we ported Milkshape .ms3d Format:
http://dgl.quellcodes.de/script/do_d...php?action=505

And started for a plugin for AC3D:
http://dgl.quellcodes.de/script/do_d...php?action=502

Maybe you find this stuff interesting? However our page is in german, but maybe you find also some interesting stuff on it (source, for god's sake, is international at all ) Feel free to visit us, if you have questions or want to mention your opengl site, also feel free to mail me. We are always collection good sources for our community:
http://dgl.quellcodes.de

Ceyas