http://c1.neweggimages.com/NeweggImage/productimage/22-144-701-02.jpg Is the connecter to the left of the SATA connecter that isn't labeled where a 4-pin power cable can go in? If so, then I could run a Hard drive on 4-pin power and a SATA cable to the motherboard? It's a Western Digital Caviar SE16 WD2500KS 250GB.
Welcome to HWF The right connector (SATA power) needs to be connected to the power supply. You need a molex-to-SATA cable to connect the 4-wire power cable to the SATA drive.