I am quite sure that card will fit in my anted nice hundred case, because I have seen pictures and movies that show it. I have also found a good motherboard for the ATI radeon HD 5970 named ASUS Rampage Extreme, X48, Socket-775. I also found out that you needed a 650W power supply or better for that graphic card and I have 550W, so I will buy Corsair HX 750W PSU. But listen... it says on the motherboard that it supports DDR3 RAM cards if you understand my language, and I have 2x 2 DDR2 RAM cards (4GB) and I have written down on my list that I will buy 2 more of them so I have the same RAM cards. Do you think the motherboard will support DDR2 cards when it supports DDR3 cards too??? and 1 more thing.... when I have bought everything I will have 8GB RAM, ATI radeon HD 5970, 3GHz processor, 750W power supply and a that good motherboard. Is this good enough for DX11 games, cause with my old computer stuff I run Far Cry 2 perfect! I can have all the settings on the highest.... but Age of Conan is not 100%. Will I be able to play Age of Conan on top settings and DX11 games perfectly with the new items you think or should I buy a new processor with 3,33GHz processor???