Agreed. I use Core Temp and EVGA Precision. The icons/shortcuts for both sit in Rocket dock at the top of the screen and I've set them to launch at startup.
I can then minimise them to the bottom task bar.
Core temp shows a different colour number for each core on my CPU and the EVGA icon sits there so I can check my GPU temp any time.
You can also use it to set your fan speed, OC your GPU etc.
I don't have an EVGA card so downloaded it from FileHippo.
I also use a Desktop Gadget which shows my CPU use and RAM use as a percentage.
Hope this helps, John