Well, what program do you recommend me?
I've heard about 3ds Max, but it seems that the 2011 version isn't useful for hacking and i can't find 3DS Max 8 anywhere.
I can't seem to find a trial of 8 either. I saw a few links to 9 though, which I use and it does fine. You might have to improvise if you can't find either.
Anim8ter also works well, but you have to have a specific version of VertexBox in order for it to read the 3ds files that you create. You also would be limited to the old vertexing method though.