Being an Nvidia fan, I would go with a 220GT. Its a descent card, and being a low power 40nm gpu, it consumes next to no power, which means it can run on a system that has an old weak PSU, also produces very little heat, which means it does well in cases that are not well ventilated (mainstream dell, HP...). If u are an ati fan u might go for the 4650, I hear they are both close in performance.