I'm not sure if I have space or not. The installation scares the living daylights out of me. I am a complete computer idiot.

My current configuration is a Dell Dimension. I have 2 drives currently. The top is a dvd (play only) drive and the bottom is a cdrw drive. Assuming I would change one of them, what would I want to end up with configuration wise? Just how simple is the installation?

Thanks for any help,

Zach