Adorama via eBay offers the the Western Digital 3TB Red Serial ATA 6Gb/s Internal Hard Drive, model no. WD30EFRX, for $132.98 with free shipping. That's $0.04/GB, $3 under our mention from yesterday, and also the lowest total price we could find today by $3. This internal hard drive is optimized for use in NAS systems and features a 64MB cache.