While waiting for bases to dry on the current 5 marines I am painting, I picked up my Space Marine Chaplin in Terminator Armor and played around. There is a product I had been meaning to test out, Vallejo Liquid Gold.
Over all I love the results. It is harder to work with being alcohol based. It drys fast if you put it on a pallet so you have to work quick or paint out of the bottle. The pigment settles fast and you have to keep shaking it back up.
edit: by the way.. this is totally a work in progress, lots of detail work and clean up. But, for a couple of hours work while bases dried... I am happy. enjoy