i am wanting a second hard disk as mine is nearly full and i would like the ability to duel boot with a second os. I was wondering which type of hard disk ide? or sata? and was also wondering how to connect it up? Raid1,2,3? i want to be able to use it as a separate drive so i can selct to save to c or the new drive and also use it to install a second operating system, if you need any of my current specs i can get them, your help would be greatly appreciated thanks.