I broke one of the fins on my current heatsink so its spinning and vibrating my whole desk. I was wondering what would be a good replacement for my heatsink? I have a Zalman heatsink but I'm not sure which one I have.. I would like a heatsink that I won't need to go in back of the motherboard for so a Zalman or something similar is what I'm looking for. Any suggestions? Thx!