While the article is mostly well written, I cant help but feel that your results are way off the scale for most users these days.
I dont mean to slate the test platform, I know not everyone can afford the latest and greatest.
But, the 7.2 drivers (and drivers based off them) offer very little with regard to the older X series cards, and havent done so since early 6.X drivers (if not earlier).
Also, only 512mb ram really limiting your testing, as you resorted to using 2 year old (and older) benchmarks on brand new drivers.
Not to take away from your testing methology, or the work that you quite obviously put into the article; I do feel is bares very little significance to the majority of enthusiasts.
All in all though, good work. Ity takes time and effort to do something like that, so fair play.
Hopefully you'll get to update the testbed and apps, and you'll go and do another article, and I'll definitely read it!
Best of luck in the competition m8.
Once again, sorry if it sounds like I'm slating you, honestly, I'm not.