I'm trying to find a CPU cooler for my future system and i have narrowed it down to these 2. The reason why i'm considering these is because i'm looking for something that would be light weight, Zalman is 560g and AC is 520g, i intend to move my system around the house a bit and i may have to move, and intel recomends the weight of the CPU cooler to be 450g, so i dont want to go over that by much. The other thing i'm looking for is low noise, i know that Zalman can get a bit loud at the highest setting, but so does the AC. But i only intend to do some moderate OCing so i dont think that should be a problem. Im getting a e6600 or e6700 CPU, with intel D975XBX2 board, which is compatible with the Zalman cooler accoring to them, i dont know if AC is compatible with my board since there is no info on their site regarding that. Both of these have great newegg reviews and are top sellers as well, so they have to be decent, though i'm leaning towards Zalman. Can someone help me decide which one to get? or if someone wants to recomend something else i would only welcome it, though please dont recomend anything which weights more than 600g.