Ive got the XFX and the standard ATI drivers allow me to clock upto 875/1000 so I have stuck with them, no need for the XFX drivers!!
Dont attempt the ASUS TOP BIOS flash mod, its pretty hard to not feck it up, and if you do, you void your waranty
thanks for the help i will try the above when i get this on monday
what program did you use to oc it