you can also use some of the colored mtalica paints -
Cote de'Arms makes a number of colored matalics, people may remember these from the origional GW color line,
http://www.blackhat.co.uk/online_shop/index.php?cPath=21_39&osCsid=c9a234a0f1d50e93ee373a6a86940603
including -
enchandet blue
http://www.blackhat.co.uk/online_shop/product_info.php?cPath=21_39&products_id=61&osCsid=c9a234a0f1d50e93ee373a6a86940603
enchanted green
http://www.blackhat.co.uk/online_shop/product_info.php?cPath=21_39&products_id=62&osCsid=c9a234a0f1d50e93ee373a6a86940603
amathest purple
http://www.blackhat.co.uk/online_shop/product_info.php?cPath=21_39&products_id=87&osCsid=c9a234a0f1d50e93ee373a6a86940603
magic metal
http://www.blackhat.co.uk/online_shop/product_info.php?cPath=21_39&products_id=63&osCsid=c9a234a0f1d50e93ee373a6a86940603
they also make the origional GW inks if anyone is interested / needs them
I dont know where to get them easily in the us but worth looking at