I was just looking at Snap servers. Given that you can get a 160GB hard drives for about $300 and a bare bones system for about $100 (running a free-of-cost OS, be it Linux, FreeBSD, OpenBSD, Solaris, whatever), that means that you could get a 320GB of mirrored NAS for $1300. The Snap 4100 with 240GB retails for $3000 (Pricewatch minimum seems to be about $2500). Oops; I'm sorry, actually, that Snap server would only provide 120GB in a mirrored configuration. And the homebuilt one would be way more upgradable. So that's $4/GB versus $20/GB.

Hope you're getting a good deal at the auction.