Quote from NurbIt's very quick to make a specular alot better than what crazybump can produce. When I want a quick specular I just make a layergroup over the diffuse in photoshop and in it I put one desaturation and then one masked levels-layer for each different material in the diffuse. Then just adjust the levels depending on the material that is masked. Usually I also put some desaturated photomaterial on top on overlay to get some added detail. 3-5 mins tops and always a workable result.
Thanks, I'll give it a try!