Steam just finished downloading a Creation Kit patch for me.
ah, OK...I panicked when I saw Skyrim had updated but the CK hadn't, and tried to load my mod to test it and it barfed at me.
(Emily Latella Impersonation) Neeeevermind! (At least if it works once the download is finished...Steam was DL in the background like a ninja...)
Looks good so far...at least it only gave me the usual "NavMesh has no parent space" thing I've gotten since the first day, and none of the evil looking errors it was giving me half an hour ago...