Got my 780's running awesome now!
For the record, the version of ccminer-v1.0 found on the bitcointalk forums is not compiled/optimized specifically for Windows. I found a version on a site called "Cryptomining Blog" that is compiled and optimized for Windows. Much better results with this version for those that use Windows!
The previous ccminer (the one downloaded directly from the Bitcointalk forums) was giving me about 1700KHash per 780... sometimes less... sometimes more... then sometimes one card would be at 2000KHash, and the other would be at 1300KHash. You know... crap like that.
The new ccminer (downloaded from the Cryptomining Blog site) is now giving me between 3700KHash and 3800KHash per card at factory stock settings (for EVGA 780 Superclocked). So happy now!
I'm now having second thoughts on starting up my 290's. I'm very tempted to get a few 750Ti's and get them running instead!
Double check if work utility has increased as well.