Hi! Welcome to the site colophon, you must be really interested in details to come here. I got my start in print where a colophon talks about font faces and leading and other stuff like that. I'll throw in what I specified for type but I'll also give you CSS and layout stuff too!
You can see everything in the style6.css file that modern browsers use. Netscape and IE 4 see the simple.css. If you don't speak CSS the skinny is:
Body Text: Verdana .8/1.4 ems
Headline: Georgia 2 ems
Subhead: Verdana 1.4 ems
Navigation Links: Verdana .7/1.4 ems
Inline Links: No underline on hover
I'm trying to use ems for type so that if you need to, you can resize the type (in Mozilla and NN6 choose View>Text Zoom. For IE choose View>Text Size) though at anything below 90%, or "smaller" for IE, I can't even read the page. Still looks OK up to 150% but the headline starts to overlap the content area in Moz. I'd like to change the top alignment of the the content DIV to percent from pixels and the same for the bottom of the header DIV, but that's not very reliable...
But still:
