Hey, I'm the one supposed to say welcome aboard!
So, welcome aboard
Many HDD's? I'm running 1x 120GB SSD for the OS, 3x 4TB HDD's, 1x 2TB HDD and 1x 500GB 2.5" HDD in a detachable USB2 case (works at SATA2 speed when attached) for mobility. The case has an HDD dock that uses one SATA connection, or else I would have added one more 4TB HDD. With the optical drive, that makes 8 SATA connection, the maximum available.