"Do you need to build a file server on a shoe string budget? If you have an old PC (we're talking original Pentium old) lying around with an ethernet card, then NASLite+, the new offering from ServerElements, may be the best way to build a a big file server for very little money. I've used the original, free, NASLite for quite a while now, and having tried NASLite+, it is well worth the $24.95."
Will has reviewed this product and seems very happy with it. What I think is pretty cool is that for under 25 bucks, you can take a pretty much worthless, but still functional computer (the article indicates that it will run on a 486) and put it back to work.