amd
yes, they are indeed that loud.
as to the original question.
for the taisol, which i believe is a larger hs, (larger than 60mm by 60mm) here is a suggestion.
take 2 80 mm fans (i personally am using 2 80mm 26cfm fans) and put them at an angle so that they form a tent over your HS, both blowing down, and you have a perfect fan, low noise and very high CFM. also you get rid of that dead spot in the mid that your normal fans would give you.
added bonus, it cools down the chips around the CPU as well.