Just wondering if anyone has any suggestions for a "low cost" (relative term) PCB house that can do 4 mil trace & space, 4 layer gold-finish PCBs? The cheapest I've found so far is PCBcart. They're about $240 for a few little 1-inch PCBs once the setup charges are factored in.
I'd love to not need the 4 mil trace & space, but the BGA on this board needs that as a minimum. Does anybody have any other PCB house suggestions? Thanks.