Zend certified PHP/Magento developer

How can I connect multiple HDD’s to one motherboard?

As the title says, how can I do that? I have an old pc case with space for 9 3.5″ HDD’s, and I want to use it as a server for 4k video/picture storage.

The case has a GTX460, and 4 sticks of 2gb ddr3 Ripjaws RAM. Do I need anything better as well? (I will not do editing with this pc, just use it as a data server.)