I believe that the 7K200 and the WD Scorpio 250GB would give different results if tested in the same OS and machine as the other HDDs....just assuming because each OS and machine....may have different background services running and feeding on the hardrive [since you mentioned that some benchmarks have been provided by D3X] (is the pagefile accountable for that too..??

)....!! (and do differences in the versions of the HD Tune software cause variations in results....

)
Just an Assumption..!!
Good Guide for the IDE HDD owners....like myself..

+rep