I just purchased an XPS 400 system with a 160 GB drive. At the time of purchase I was told that I could add my New Seagate ATA 200GB drive from  my old system to the new system. I opened up the case and there is a bay for the drive but there is no cable to interface the drive to the master or to the system board. Dell is sending me a cable but it looks like the connectors on my Seagate Drive are different from the Dell drive. How do I hook up my 3 month old Seagate drive?