I have a whole list of them

Hope this help's
Rod Rock
http://groups.yahoo.com/group/COLD_CASTING/US Bronze Powders
US Bronze Powders (610) 681-7199) give them a call and tell what you are looking for.
http://www.x-actoblades.com/usbronze/usbronze.htmTaxidermy net / WASCO (Synair suplyer)
cold cast bronze powder
http://www.taxidermy.com/cat/18/pourakast.htmlSmooth-On Cold Casting ( metal powders)
Cold casting how to and metal powders
http://www.smooth-on.com/casting.htm#MetalSSS Chemical ,Patinas and Antiquing
Thay manufacture and supply patinas, metal coloring, and antique solutions to oxidize copper, brass and bronze as well as ferrous metals, nickel, silver, zinc, zinc-dicasts, solder, tin, and aluminum. Our metallic copper, brass and bronze coatings are used for traditional decoration
http://www.metalcoloring.com/Poly-tek
Poly-Tek silicones ,tools and casting supplys (call them for bronze powders )
http://www.polytek.com/Metal powders
Zinc Corp metal powders
http://www.zinccorp.com/Metal Powders
Titan Metal Powders
http://www.titanmetalpowders.com/metal-powders.aspMakin Metals
Makin Metals (Suplyers of metal powders )
http://www.makin-metals.com/Eagerplastics
Eagerplastics mold making supplys and metal powders
http://www.eagerplastics.com/fillers.htmCrescent Bronze Powders
Crescent Bronze Powders (supplyers of bronze powders)
http://www.crescentbronze.comAlumilite
Alumilite ( look of metal powders )
http://www.alumilite.com/news.cfm?ID=5&action=viewAlcoa Atomized Aluminum Powders
Atomized Aluminum Powder
http://www.alcoa.com/smd/en/product.asp?cat_id=255&prod_id=1633Acupowder
Supplyer of metal powders (ATOMIZED METAL POWDERS)
http://www.acupowder.com/ATOMIZED METAL POWDERS
Douglas And Sturgess ,What look you will get with Metal powders
http://www.artstuf.com/atomized-metal-powders.html