I have been running a small XBMC on a small HTPC which is OK but recently decided that after upgrading my server to Win8 it would be best for XBMC - local media and a fairly fast system so it is more responsive. Plus may as well use the waste heat for my living room. I have soundproofed the case pretty thouroghly, used a low noise cooler etc. so it is barely audible. The remaining noise (which I can live with if I must) is from the ten hard drives and gets out via the intake and exhaust fans. Does anyone have experience with small acoustic baffles which would help to reduce this noise? Thanks.