HPShopping.com has refurbished units of both the EX470 and EX475 available in their Outlet Store for $379 and $459 respectively (and you can save even more if you have EPP benefits). While not quite as good of deals as we saw back in November, this is still a possible way to get into a great Home Server for a pretty good price.
I don’t know how long they’ll last, so if this interests you I suggest you order right away. Let us know if you get one!