For myself, I never draw - I compose my images first in my head. I then imediatly start putting together my ideas in my 3d program. This gives me much more freedom to explore. I almost never end up with my original idea. I pretty much treat my work the same way a photographer would, not as what a more 'traditional' artist would. I'll build a 'set', pose an arange my subjects, set up my lighting, and 'snap the shot.' That's why I characterize my work as "virtual photography" and not as computer art. :)