Western Digital is really getting in bed with Thunderbolt. It already has a 2TB 10,000RPM monster, and now it's got 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's also got 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 $850, and available now at WD's online store. [Western Digital]