I've gotta agree with vilters; Blender is brilliant and free ( http://www.blender.org/ ) and there are a billion (yes, I actually counted them) free tutorials available.  Youtube has 731,896...no make that 731,904 videos.  I struggled with Sketchup for many months before moving to Blender.  You might also find this blog of use ( https://blendertodaz.wordpress.com/ ).  Read the comment under 'On Hiatus'.  It details the Blender to Poser workflow.