Western Digital is really getting in bed with Thunderbolt. It already has a 2TB 10,000RPM monster, and now it has an 8TB external drive with Thunderbolt.
The MyBook 8TB is the largest consumer-level Thunderbolt drive, and it works with RAID 0 and RAID 1. It comes with a Thunderbolt cable too, which is nice. It also has two Thunderbolt ports, so you can daisy-chain six together for 48TB of Thunderbolt magic. On the downside, it doesn't have a USB 3.0 alternative, so if you have to work with an alternative machine that doesn't have a Thunderbolt port, well, you're screwed. It's $US850, and available now at WD's online store. Australian details are yet to be confirmed. [Western Digital]