If your going to do some overclocking I would recommend something faster than PC3200, I regret not going with different memory in my system now. Nothing like taking your ram up to DDR500-600 and avoiding using dividers, All depends on your budget though, PC3200 is plenty fast enough even with a divider as long as you get something with good timings (2.5-3-3-5 or so) But if your going all out something that can do DDR600 with good timings.