Yep,have used a rather easy no maths please approach lately myself.
I'm sure it's not the only way or the best,but it diddit.
Make a circle(n-sided polygon) in your favourite 3d modeling app with the desired vertex count
and then either place your objects exactly on these vertices or write down the
coordinates of them.I used Wings3d for that purpose,quick'n'easy.
Hope that gets you going.Any more questions,just ask.
Cheers,the other J.