Can anyone tell me if i can use any of the processors available on the dell website (uk) for my xps710. I have been told on another posting that i could use the qx6600, also i have contacted dell tech support who said i could use qx6700 or qx6850, but i have been unable to find any of these on the website. i am upgrading and would like to choose a few different items from the website as a package rather than shop elsewere for the above processors. Any advice for current available cpu's on the website would be welcome.