I am going to be running an amd 64 fx55 with an asus A8N32-SLI Deluxe motherboard but i have no heatsink/fan. I have been looking at the scythe ninja, the Arctic Cooling Freezer 64 Pro and the Zalman Aero flower. I have heard that copper is better which the zalman has but i am unsure of which would be my best option. Thanks for any help.
The Flower is not upto the task; I used to use one on an Athlon XP 1700 and it as was fine for that, but I would not expect it to handle current CPUs. It was not quiet enough either.
The 9500 is the one that really sets the benchmark. I find that its perpendicular mounting is hugely beneficial to airflow as it avoids cross-currents, especially in a large case with a fanless PSU. Despite being one of only two fans (of any kind) in my entire system, it is kept at minimum speed and cools a 640 to about 36C under typical use. When used in the right system, it is barely audible in a quiet study.