Woot! After almost 4 hours of updating Windows(I hadn't updated in almost 2 years, LOL), I finally was able to start the download for ServicePack2 and got it installed... now Diablo III is installing! Woot!
Though, there are WAY too many system restarts involved with updating... why can't I just download 1 huge patch?
Valahan #1962 whenever I don't get error 37 trying to log in.