Newegg's Shellshocker today is this (may bring up keyboard, scroll over to the other deal)
http://www.newegg.ca/Special/ShellSh...7-_-08162011_1
SATA 150 & 300
4 x Hot-Swappable 3.5" Drive Bays
JBOD (Hard drives are accessed individually)
$74.99
A very simple but economical and elegant in my mind solution. The biggest downside is the drives are accessed individually but for a media server/NAS, that should be no problem right?