I was looking into getting a few new parts for my pc and just had a few questions first: 1. Are the ATI x1600 and/or x1800 cards better than the x700 (PCI-E) I currently have, I wasnt sure how the 1k series is compared to all the other cards (are all the 1k series cards better than the other x series (like my x700)? 2. If anyone has used a crossfire set-up, is it much better (worth it) compared to a single card? I've seen some people saying they dont get that much of a boost. 3. What is a good crossfire board out there? Any of these questions you can answer would be great! And I know there are many of you out there that love SLI but please keep the topic on crossfire! Thanks!