A good computer. 144 FPS is more than 60 FPS. You get much smoother picture. However, recording is different. While your display can only display up to 144 frames, recording and slowing down is basically just how many frames you get, which is not dependant on your monitor. It also depends on what game you play, some games can't go above X FPS without causing problems with the game. After recording you want to convert all your files to DNxHD (broadcast formats), from whatever the original file was, usually .AVI, which is one of the worst files to edit with. DNxHD is easier to edit with, smaller files, and no quality loss. In Premiere for instance, all you literally do is slow down your high FPS clip to get to 24 or 30 FPS for smooth...