I am new to this computer game thing, but really enjoy it. I did not realize how superior the computer games are when compared to PS2 and xbox. We have both of the aforementioned and I just bought a new computer and decided to p/u D3 while shopping. Wow, I was impressed. Anyway I was considering upgrading by Vcard from the factory installed ATI Radeon X600XT 128 to the ATI Radeon X800XT PE 256. Would this be a significant change?