Been doing a bit of research of gettingthe PC as quiet as possible. Obviously I don't want to spend to much. For HSF a found below: SoA Volcano 7+ from Thermaltake form dabs (17 from dabs) Zalman CNPS 6000 from overclockers (35.02) Thermalright AX-7 from overclockers using papst fan (34.02+fan) Silverado Noise Control from chillblast £44.99 Zalman 5100+ Flower Obviously the Volcano 7+ is the cheapest, and plan to set it the lowest fan speed. Of all the HSF above, I think noise control is probabaly the quiettest (see review from tomshardware), of course the AX-7 is extremely effective irrrespectively of the fan use (saw it in review). I think I will try to buy Volcano first to see how it is. Second consideration is PSU, very hardware to find review about the sound it generate. Found a excellent review on QuietPC PSU 300W. but I am concern about the power rating, can anyone help me what is the maximum CPU u have using 300W? I plan to use at least AMD 1700+. Also found Enermax, the whisper model is expensive, I think I saw it in avsforum saying is not as quiet as it seems. Compare to QuietPC, which one do u prefer?? Any other suggestion about PSU would be helpful (& where to get in UK) Last but not least, do you think it is possible to change the fan of Radeon 7500 to fanless heatsink eg. from Zalman. I am afraid that my crad will overheat Last question, what did you do to make your PC quiet??