...but I checked my download folder and there was a Diablo-III-Setup-enUS.exe file so I clicked it and got an 8 gig file through the launcher that is now downloading.

I reopened my installer and it is still at 4.7 gigs out of 7.6, so should I still download all of that? Should I stop my setup download? I have a feeling something won't work here and I'm going to be sorely disappointed tonight when I go to play.