Hi! This is my first post here. I´ve been flightsimming since FS4 but now I have been out of this hobby for almost a year. I feel it is time to come back... (Thanks to the review of the DHC-6 Twin Otter X. After reading it I really wanted to be able to fly it!) Thank´s Mathijs for your post. It was really interesting and helpful. I´m looking for to buy new hard ware for FSX, and your post helped me lot. (I´m not any kind of expert when it comes to hard ware). There are some things I like to ask you, folks. Is it better to have a Core Quad or 3,0 GHz? My otions are CORE 2 QUAD Q9550 2.83GHz,CORE 2 DUO E8500 3.16GHZ and Core Duo 2 E6850 and I don´t know which one to choose. Why 4850, why not 4870? And to make things even more difficult, some say 9800GTX+ would be the best choice... How much incompatibility issues I would have with the Vista 64? Anyone able/willing to give some answers???