Oh I see, I was only wondering as because I seem to see that the "OCUK" ones are marginally cheaper than the other brands.
I am thinking of getting the Asus 768MB GTX460 personally due to my budget and think it would have great scope for also upgrading to 24" monitor in the future. But, seeing as the OCUK value 1GB version is only £5 more would it be wiser to get the 1GB OCUK version?
Also if no one minds me asking if anyone has previously owned a Asus GFX card with the voltage tweak, because you get 3 years warranty - but does using the Overclocking voltage tweak violate the warranty policy (Trying read it up on ASUS site now but the 460 isnt even listed there yet).
Finally, just like to say thank you for replying as it is helping me greatly