SpeedFan v4.44 - Speedfan does more than it's name suggests. It also monitors various temperatures and voltages within your system.
HWMonitor v1.18 - HWMonitor monitors voltages, temperatures and fan speeds for various components in your system.
wPrime v2.05 - wPrime is a relatively new multithreaded benchmarking tool. This is going to be an interesting benchmark as we are entering the era of fully multithreaded games and ever more processor cores.