Not necessarily a "scripty" thing, I keep meaning to set up my very own 404 error page, and I (a) don't know how and (b) when I have been given instructions I lose them. So the Custom 404 File Not Found Error Document Message Tutorial that I found at Brandy's site is a helpful thing for me to have around!
Jenn … 404 errors, uh, does that have something to do with .htaccess?!? Hmmmm…