If, as with the above comment, you are capable of burning a cd (or reading one) then you have an IDE cable available. Take it from your CD-drive. Most systems have two IDE controllers, which can have two drives each. If you physically mean there is no room, such as a drive bay, don't worry about it. Just make sure your HD is set in such a way that the cable isn't being pulled on. I've been able to lean them against the case or set them on top of a small object to accomplish this. It doesn't need to be there long.