Below is what I had seen and misunderstood as an IDE drive, it can be loaded with IDE drives up to 2 T, but the host connection is SCSI so I guess it wouldn't be compatable. Too bad, that would give something like 200 hours of HD recording time ,a boatload of SD, and a s---load of analog recording. The maximum size IDE hard drives I could find were 250GB at about $1/GB.
Arena Premium 8200 12 Bay
SCSI-IDE Rackmount RAID
This 12 bay 4U rackmount SCSI-IDE RAID will provide two terabytes or more of storage at RAID5 when configured with 200Gb or greater drives. Features include three 300 watt redundant power supplies, Dual Ultra160 LVD SCSI host interface, and 64 bit i80303 controller. On-line expansion feature allows the user to add drives to an existing array on the fly. Standard with 128Mb, upgradable to 512Mb cache. RAID 0,1,0+1,3, 5, or JBOD. All drives, cooling fans and power supplies are hot swappable. Supports up to four RAID sets with multiple LUN masking. Comes with an easy to use monitoring software which allows real time event display and notification in event of array status change. 19" rack mountable. 81-3045R