Unfortunately none of the software you mentioned can really handle fly-around animations. You can get ArchiCad and Autocad anywhere but Microstation and the others may be a bit difficult to find if u are not in lagos.
For your fly-around i would advise you to get 3D Studio Max which will allow u import your AutoCad or Architectural desktop file, then u canrender and animate.
If however u have an urgent job such that u can't afford to learn the software now, u can let me know and u can outsource the job.
In the meantime visit
www.3dnigeria.com and be inspired by what other nigerian architects are doing with various software (especially 3ds max)