Once you learn poly-modeling its just like sculpting! You just have to have that mindset to know where each polygon is in XYZ space because you cannot see it and touch it. It's pretty fun!
There are some nice tutorials on www.3dtotal.com and you can also check out their galleries, you will be blown AWAY!!!
There are some nice tutorials on www.3dtotal.com and you can also check out their galleries, you will be blown AWAY!!!