Crystal Disk Mark v3.0.1 is the last piece of testing software - it's particularly notable for its easy to use control interface and outputs results that are simply laid out and easy to interpret.
This final test echoed the others I'd run. A doubling of read performance of Raid 0 over a single drive. The dual 320GB laptop drives deliveerd excellent performance.
Read results.
Write performance was virtually identical. The Raid worked well and virtually doubled performance once again.
Write results.