yeah, this is probably the correct forum. there are a couple folks who work with 3D in here, not sure if they use Macs though. i did a lot of 3D in college, but it never made it into my career path so my use is pretty minimal now.
but to answer your question, Autodesk Maya is a fantastic 3D app and there is a Mac version and you can get a free copy if you are a student/educator. http://students.autodesk.com