I think some one new to modeling should know first what is a polygon,nurb,subdivision surface first.
first lessons are free and refers to the Polygon, Nurbs or Subdivision surfaces basics.THe lessons are for Maya modelling but the rules/basics are the same in any 3D application .
with these lessons , anyone very new to modeling or 3d art will learn the basics/fundamentals/essentials , what is a polygon, what does it mean a NURB, or what is a subdivision surface.
Feel free to explore that website and hunt for modeling tips even from mudbox,zbrush,maya,3ds max.,modo, rhyno..etc
Some lessons are FREE and some are only available with subscription, however the basics of modeling you can learn them for free. When you see FREE click on icon to view the video.Hexagon modelling is very similar to maya or 3ds max modelling .Get inspired from these tutorials too, you won’t regret it ,, i promise.
How to create a cool rock http://www.digitaltutors.com/11/training.php?vid=16474&autoplay=1 (sculpting not modeling)
Related to Hexagon see : http://www.sharecg.com/b/3/Tutorials/?keywords=&b_upload_type[All]=All&member;_type[All]=on&attribute;=1&attribute;[-1]=1&attribute;[-1]=1&s=dd
or see http://3dexport.com/3dtuts/category/3d-tutorials/hexagon/
-hard surfaces ,technical modeling,working with polygons can be done only with hexagon,3ds max, maya,blender, etc.
Zbrush,mudbox,modo,etc are only for sculpting (working with clay) and for fine details such as wall cracks ,aging a wood (planks),etc
-hiding parts when sculpting on a specific part of a model on slower machines might do the trick to prevent some lags when rotating.(sculpting high poly models)