Using Specular maps, and bump maps,normal maps are from the past school.

All you really need is ONE single good diffuse map.

And one single diffuse map at 8192x8192 driving the rest of the nodes, is far LESS RAM consuming than the old school technique where you need multiple maps and different maps for spec, bump or normal.

PS; as they are both "fake", I never use a bump or normal map.

*Extraordinary claims require extraordinary proof. You should upload some images to your gallery so people can judge whether your methods actually produce quality.

Download my free stuff here: http://www.renderosity.com/homepage.php?page=2&userid=323368