Even such "small" drives as this have their uses in tweaked-out systems. Install it as a second hard drive on its own IDE channel, then set up a partition at the front of the drive -- maybe 2 GB worth -- to be used as your system's virtual memory. Set this as a static size and location in your system properties.
This way, your drive heads don't have to shuttle back and forth between the virtual memory and the actual hard drive storage. Another tip is to unzip/unrar files to a second hard drive on its own IDE channel. This is probably the most processor-intensive task my computer does on a regular basis, besides game playing, and the second hard drive really speeds things up.