On my 2009 set you can really only hear the fan when you are behind the set. It is the quietest of several DLPs set I have owned. As for whether you should buy a 2010, or a 2009.. I don't know. The 2010 is supposed to get update firmware that will support most if not all the 3D formats without an adapter.
Samsung 78" JS8600, Mits WD-92840 43" Samsung 43ku7000 - Lumagen Radiance XS, Martin Logan Motion 40s, Ascend Sierra 2s
58" Panny Plasma -DVDO DUO, Usher S520, JBL HLS-610, Definitive SM45, MusicHall Marimba