Test My RAID-0 Setup ?

I am on the tail end of building my system. It has been quite and experience so far. After an already successful first build, the computer is OC at 3.9 ghz stable but then I felt the urge to upgrade my sole 1TB hard drive ( 32 MB Cache /3 mbs ) into a RAID 0 configuration,using 2 brand new WD 1TB hard drive, 64 MB Cache / 6 mbs, which my Asus supports. I am assuming that this will seriously improve speed and performance.trying to figure out the RAID setup in BIOS and a clean install of Windows 7 64 bit, I finally got it to work. The computer is now operational. But there is only concern I have...

I can't tell any MAJOR improvement ! A slight improvement in speed when I change windows and programs is notice.In addition, the transfer rate when I moved files to the new RAID was quicker at around 88 MBS. Why I am concern is because my Windows system assessment's score for hard disk transfer rate is only at 5.9, which is low and the same as before. Everything else is at 7.5 or higher. Also, I was hoping the load times of my files ( the thumbnail previews ) would increase in speed, but appears to be the same. I am somewhat certain that my RAID setup in BIOS was done correctly. The system is seeing one drive with a 2 TB capacity. I use my computer to do a lot of hd video editing.

1- Is there a way or to test, monitor, or tweak my RAID 0 setup for optimum performance?

2- Am I actually getting the best out of RAID 0 and my expectations were just too high?

3- Are there specifically " one " type of RAID 0 setup? ( I just want to eliminate the possibility of setting up RAID 0 incorrectly in BIOS ).

AMD 965 125 watt
ATI 5770
700 watt psu
M4a87td EVO
8 gigs of ddr-3 memory
Windows 7 64 bit home
WD 1TB hard drive 64 mb cache/ 6 mbs ( RAID O )