<a href="www.pdm-racing.com" target='_blank'>www.pdm-racing.com</a> Hit the Miscellanious parts link, and you'll find a set of factory canadian daytime running lights. These can easily be wired in with your parking lights or you could pick up a switch kit and hook them up as fogs.
personally, I took a cheapo set of foglights about 4"x2" and mounted them behind the black grills on my s13. They do the trick for the fog and snow around here (once I re-aim them a tad bit higher <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'>). Regardless, they work and look pretty slick, and are cheap as ####. I'll post some pics once I have my camera and my powermac at the same location :-)