sakshale's Journal: What to use for a home file server?

My current data storage at home is becoming tired. It's a four year old linux box, running some version of Fedora and doesn't really have all that much disk space by today's standards, so I am on the lookout for a replacement. However, nothing I've seen, that I can afford, makes me happy. What are you using at home to keep all you old stuff you just might want to look at someday?

1 - I don't want to deal with yet another tape device. I've lost track of the number of tape storage systems I've used, only to erase the tapes a couple of years after the system died of obsolescence. Multiple copies on disk, with some type of redundancy should be sufficient.

2 - I would like something whose OS can be easily upgraded, without having to cross my fingers while running a major update from one release to another. Not being plagued by ever worm or virus that hits the streets would be a plus. My current solution is a home brew raid system, running Fedora. It is non-standard enough that the Fedora 7 disk doesn't even register the existance of the OS disk.

3 - I would like something that can grow with the growth of disk drive capacity, without have to replace every drive in a raid array at the same time.

Any candidates?