If you're in the need for more hard drive space, but don't want to add another drive to your computer, you can always opt for an external hard drive. Network storage drives are a conveniant thing to have, especially if you've got a home network going.
"When looking for additional storage for your PC there are 2 choices; internal or external. When going the external route most people opt for USB or Firewire drives. They are fairly inexpensive and very easy to setup. How about storage that you can access from any PC in your house and even from anywhere via the internet? Yes I'm talking about network storage. Today I am taking a look at a really cool device that not only serves as network storage but also acts as a router. The product I'm talking about is the IOGear BOSS 120GB Home/Office Network Server Appliance from Geeks.com, so let's take a look."
It's not cheap though, with the IOGear BOSS 120GB costing around $260+.