u will always need a raid floppy disk just to let windows know whats going.
1>Make ur raid floppy
2>set up ur raid array if raid0 32 or 64 mb stripe should be a good all round size for fast performance
3>boot from win cd then when prompted press f6 to install raid drivers. (the prompt is on the bottom of the first blue screen u will see but keep ur eyes open and be quick)
4> when asked press S to specify a raid controller
5> when prompted insert the floppy and press enter
6> select the raid drivers to use depending which controller u have ur array on and press enter
continue ur install as you normally would
hope this helps u out
p.s
u will not be able to use a usb keyboard to do this.
if u need help on any part of this dont hesitate to ask
oh and by the way nice setup u have there m8y