I dunno about RAID, but you could look into moving to a WD Black drive. The Black drives are wicked fast.
Newegg.com - Western Digital Caviar Black WD5001AALS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Newegg.com - Western Digital Caviar Black WD5001AALS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
WD Caviar Black drives combine a high performance electronics architecture with a rock solid mechanical architecture to deliver the perfect storage solution for your fully-loaded PC or maxed out gaming machine. Cool drive operation, no-touch head technology, and leading-edge vibration protection ensure enhanced reliability and sustained data throughput. And we back it all up with a 5-year limited warranty.
Key Features
High Performance Electronics Architecture
* Dual processor - Twice the processing power to maximize performance.
* Colossal cache - Bigger, faster cache of up to 64 MB means faster performance.
Rock Solid Mechanical Architecture
* StableTrac - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations.
* NoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.
Massive Capacity - WD Caviar Black SATA drives are available in capacities
up to 2 TB.
Compatible - We perform tests on hundreds of systems and a multitude of platforms in our FIT Labâ„¢ and Mobile Compatibility Lab to give our customers confidence that our drives will work in their systems.
5 Year Limited Warranty