Hmmm, that brings up another question.

Do those compilers have the OpenGL headers and those standard delphi headers included?

Talking about uses windows,system,math, etc...

If so, it's just what I'm looking for

I may want to make a little profit off this project, so I had better be careful about copyright and licensing...

Currently using:
OpenGL
FMod (gotta find me a substitute which also features wav & ogg support without using media player or other dlls which need to be installed externally).

The rest is all delphi stuff.