I just installed CoolMon last week on my computer. I like it, because unlike MBM, which I also have running, it shows you both the mobo and the CPU temp. Since this computer is being turned into a server soon, I dont have very many fans, and I am trying to search for the best fan placement, so both of those temperatures matter. I also like how it shows the IP address (just in case mine decides to change unexpectedly at some time and ruins my server-ness)
BTW, does anyone know why sometimes the CoolMon display disappears every now and then and wont show itself unless I right-click the tray icon?