Here’s my success at getting lm-sensors working on the Abit AN-M2HD motherboard in Ubuntu Feisty 7.04 with the nVidia 100.14.11 drivers. I’m assuming you have Feisty running fine, but without functioning lm-sensors, and have the nVidia drivers installed and working fine.
sudo apt-get install lm-sensors. Now you can remove the Gutsy repository and run apt-get update again.
/usr/sbin/sensors-detect. Answer ‘yes’ to all prompts, including the one about editing /etc/modules. Manually run modprobe on each of the modules it lists, so that they are available to you now, not just after you reboot.
That’s it. I was worried about dependency hell, but it went smoothly and now I know how hot my cpu is (answer: 37.5 C, despite being in a case inside of my media cabinet).