OWC is now selling 960GB SSD drives. We’ve been using them (smaller sizes) for the last year or so, in both single drive and dual RAID 0 configurations. Big improvement over normal 3.5″ SATA hard drives. They are not cheap but if you need the speed they are well worth it.

See specs below from their website http://www.macsales.com

OWC

960GB
Mercury Electra™ MAX 3G SSD
2.5″ Serial-ATA 9.5mm Solid State Drive

Mercury Electra 3G SSD

When only the fastest and most reliable Solid State Drive on the market today will suffice for your data storage and backup, look no further than the OWC 960GB Mercury Electra MAX 3G SSD.
The Mercury SSD line features industry leading SandForce® DuraClass™ Technologies:
  • DuraWrite™ extends the endurance of your Solid State Drive (SSD).
  • Intelligent Block Management & Wear Leveling automatically distributes data evenly across the entire SSD.
  • Intelligent Read Disturb Management spreads the active read/write across the flash components eliminating data corruption caused by constant use.
  • Intelligent “Recycling” for advanced free space management gradually re-writes data across the SSD over time to ensure data never gets corrupted.
  • RAISE™ (Redundant Array of Independent Silicon Elements) protects the data on your drive similar to having a RAID setup.
  • Best-in-Class ECC Protection for longest data retention and drive life.
No Risk, No Hassle 30-Day Money Back Guarantee.
This internal 2.5″ SATA SSD uses the latest SandForce 2181 Processor and DuraClass™ technology to deliver the highest transfer speed, endurance, and performance available today.With sustained reads up to 254MB/s and writes up to 250MB/s, up to 100X greater data protection than enterprise class Hard Disk Drives, and RAISE technology for RAID like data protection and reliability, the OWC 960GB Mercury Electra MAX 3G SSD line delivers unbeatable performance that’s designed and built in the U.S. from domestic and imported parts and backed by a three year warranty.
  • Highlights
  • One of the fastest Internal SATA 2.5″
    SSDs available…and Built in the USA!
  • Ultra-efficient Block Management
    & Wear Leveling for unparalleled reliability & performance.
  • 3 year OWC warranty