I like the look of it. Admittedly set-up is a bit trying but it's really all on Speedfan's side. Vista users start speedfan as admin, that's the only way this widget can sort itself out.

Could be a bit smaller and able to fix on top but overall good

This widget use speedfan plug-in. This speedfan made my MSI-AMD crash so many times.

This widget is not metal! }{

Well I have to admit it totally took me forever to configure Speedfan correctly, but that's not this widget's fault. Once Speedfan was set up correctly, I downloaded this widget and immediately, without any problems whatsoever, it discovered all speedfan sensors. Selecting and renaming the right ones was a breeze. The graphs are great and the whole thing is very informative. Would be cool now if the design was more like the standard yahoo widgets or if I could customize it, guess I'll go into the source.
Thank you!

@Raymond

I don't offer support on the message board. However, the widget WOULD work if you bothered to read the directions. For instance, you need to install Speedfan (hence the name, Speedfan Temperature Monitor). You might have noticed this if you had read the big warning that runs the first time you launch the widget ("THIS WIDGET REQUIRES SPEEDFAN TO WORK CLICK HERE TO DOWNLOAD IF YOU DONT ALREADY HAVE IT", or something like that). You also might have noticed that I offer …free technical support. I know I never received any e-mails from you. I'm also not sure what you mean by a log file, since my widget does not require any log files to function. More