Resources For you Needs!!

http://www.imageafter.com/index.php skin on weapons and clothing
http://thefree3dmodels.com/ for models that already been made
http://www.pixologic.com/home.php Zbrush for Models making them realistic
http://www.free3dtutorials.com/ learn about 3-D models alot of tutorials
http://www.3dtotal.com/index.php alot of tutorials on different Modeling Software like Blender stuff you heard about
http://www.mayang.com/textures/ another free texture site
http://www.assistcg.com/tutorials.html tutorial about using blender
http://www.3dmodelfree.com/models//26920-0.htm another Free models and other stuff you will like
http://www.hongkiat.com/blog/60-excellent-free-3d-model-websites/ 60 different model sites
http://www.digitaldreamdesigns.com/3DModels.htm look for meshs and other things here you go
http://www.archive3d.net/ more other models