I like System Explorer for system task display:
http://systemexplorer.mistergroup.org An additional feature it provides:
• Easy check of suspicious files via VirusTotal or Jotti service.
I like SpeedFan for displaying system teperatures, fan speeds and voltages:
http://www.almico.com/sfdownload.phpSpeedFan is a hardware monitor software that can access digital temperature sensors, but its main feature is that it can control fan speeds according to the temperatures inside your pc, thus reducing noise.