Questions regarding: Installation of FOUR Drives

i tried the search options but i came up empty handed. so does anyone know how to install 4 drives? one dvd-rom drive, dvd burner, cd-rom, and cdr burner. im upgrading to dvd and dvd burning but i dont want to get rid of my old drives, so is it possible to install all of them? i know i need a case with four 5.25" expansion bays, but theres only two IDE cables, so i dont know what to do. please help me out thanks alot.