David,

An external drive enclosure would work. You can read about them HERE.

Just be sure to get the correct type for your drive. By old it sounds like your drive is an IDE as most new enclosures support only SATA. I've seen some that support both SATA and IDE but not very common. Most enclosures use a USB connection to go from the 'old' drive to your computer. There are some cables sold without enclosures but have no experience with them. Remember you need power as well as data connections.

Check Amazon or a computer website for more info.

R