GOM, all the drives on that page are IDEs, the SATAs are on seperate pages, so any one off that list will do you. When on that page, if you look at the drop down menu of available components on the left hand side of the page, you will see clearly that you are on the 3.5" IDE page.......that is highlighted.
You do not need any more connectors, the new master will go on the end ( black) connection, and the slave on the middle (grey) connection.
When you take the connector off the old drive, note the configuration of the coloured stripe down one edge of the connector ribbon, which stripe lies against pin 1 on the drive.....then just insure that you connect up with that stripe in the correct configuration.