OK Cant decide which CPU Cooler to go for? I really think i am interseted in the Zalman coolers because they are really good qaulity and look very nice. My only concern is the weight of them!? I dont really know if its going to be a problem or not, any opinions? I think i want to Buy A: The Zalman CNPS7000B-Cu LED which is amazingly heavy and i would be woried @ 775g B: The Zalman CNPS7000B-AlCu LED Which is alot lighter But not as pleasing to the eye @ 458g C: The Zalman CNPS9500 LED My favourite but again is heavy and i guess would be top heavy in a tower. @ 570g D: The Zalman Fatal1ty FS-C77 @ 918g WOW They all seem really heavy considering the recomended weight is only 450g? Some opinions please?