Will i be able to hook up 5 fans to this power supply?
1 x Main connector (20+4Pin)
1 x 4+4 Pin EPS 12V
2 x PCI-E
5 x SATA 4 x Peripheral
1 x Floppy
Yes, you can buy a molex to 3-pin connector. Although you won't be able to control them. Then you will have fans screaming full speed @ 12V. If you are not purchasing a fan controller I suggest splitters for your case fans.
You do know you plug the fans into the MOBO fan headers?