is it possible to apply a single material to multiple selected objcts in one go… bcoz its a pain in large files to select each small object one by one and assign the same material again and again… 
Yes it is:
This is pretty helpful too:
These tips are probably on this (elysiun) forum too, but I already know of the cgtalk ones.
wow mighty awesome!! 
thanxx!! u rock… as does Blender 