I've installed a dvd drive, hard drive and video card. I didn't have a hard time with it, but that new pc looks a lot different inside, in that there are a TON less wires. I'm a bit confused
That link might help, though - knowing the reverse procedure, how to install. I've never added a second drive myself. It's easy to take one out and attach another yanno? It's another thing (for me at least lol) to add one and have to hook up cables and mess with the motherboard.