i am thinking about upgrading my stock AMD HSF that came with my 955, and don't want to spend a whole lot of money. especially when i'm not planning on setting any overclocking records, so i don't need the noctua cooler i was looking at..
also, do the tower coolers put too much of a strain on the motherboard? I'm just afraid of any towers falling on my 4850 and causing massive damage to any surrounding parts..
What about a Xigmatek with a backplate? Had the HDT-S1284EE on my Core2Quad at 4GHz and it ran under 70 at full load. Actually it worked better than the dinky water cooling loop I have hooked up to my Core2Quad now.
Without the Crossbow (backplate) the Xigmatek only comes with the pushpin clips. At that point the cooler is too hard to install and doesn't apply enough pressure for it to work adequately (in my opinion).
*EDIT* Just noticed this is for a quad core AMD. Any of the mentioned coolers will work fine.