I currently own a ThinkCenter A52 (8153-C6U). It currently has a 160 GB disk drive, a 3.5 inch Diskette Drive, Multi-Burner, and CD Burner/DVD ROM. I would like to replace the 160 GB with two 1 TB Drives and set them up for Disk Mirroring. Problem is, the tower does not support the addition of a second disk drive. Some A52 like Tower models have a drop down cage that allows for the addition of a second disk drive. Any ideas on how I can accomplish my goal of two 1 TB disk drives in the A52 chassis?