I am in the process of pricing a home theater file server. I plan to build a rack mounted server to store my 250+ DVD collection, but I am unsure of which route to take when it comes to Sata 150 vs. Sata 300. To begin with I will be using a Norco 20 bay enclosure with 5 Sata 300 WD 7200 'Black' HDs. NIC will be 10/100/1000, with the same on the HTPC side (NIC I mean). I plan on running Windows home server on the file server and using RAID5. My question is, do I need the through put of a SATA 300 (II) RAID controller, or am I OK with a cheaper SATA controller.