WXP,
Tire talc Eh? I KNOW what you have been reading. If you haven't already, check some bicycle shops near you. Not the department store ones but the high end shops selling the $3000 frames. They'll have some. Regular talc is fine but do try to use one without any additional scent or soothing stuff in it, who knows what that stuff is? In a pinch corn starch works as well.
rich