I checked out the MSi, the Mobo Monitor 5, and lastly the Sandra, of the three, I'm using Sandra right now. Offers a lot more information... go to download.com and search for Sandra.
MBM 5 and PC Alert III (which is on the MSi cd) posts similar temps, Sandra posts a little higher. Since some people have said that the MBM5 and PC Alert III and Bios posts a little low on the MSi boards, I guess that would make Sandra closer to the real temp right?