help on athlon64 heatsink and fan

i've been checking a few sites with a view to upgrading my current rig setup to athlon64 setup but i could do with some suggestions on good best heatsink and fan setup with a good through air setup i've come accross one which i'm tempted on there is a link below.
if you've any better ideas post some.
i thankyou in advance for expert comments.
rob


http://tw.giga-byte.com/Peripherals/Products/Products_GH-PCU21-VG(3D%20Cooler-Pro).htm#

 

http://www.xoxide.com/amdsoc462coo.html