Read/Write Speeds on Adaptec 51645

Raid0 (two 10k RPM Raptors)
Read: 389MB/s (99.9% CPU usage)
Write: 107MB/s (99.8% CPU usage)
Raid10 (8x 750GB SATA 16MB Cache 7200RPM)
Read: 343MB/s (99.9% CPU usage)
Write: 111MB/s (71% CPU usage)
Single 500GB 32MB Cache 7200 RPM
Read: 408MB/s (99.9% CPU usage)
Write: 69.8MB/s (75% CPU usage)