Graphics card temp

MSI Afterburner is perfect for monitoring graphics cards.

http://event.msi.com/vga/afterburner/download.htm

If you are just interested in the temps of various components then CPUID Hardware Monitor is great. (Be warned that sometimes HW Monitor and MSI Afterburner conflict with each other, speaking from experience)

http://www.cpuid.com/softwares/hwmonitor/versions-histo...

You could also try GPUZ-Z.

http://www.techpowerup.com/downloads/1978/TechPowerUp_G...

Just remember that it is not advisable to run 2 or more of these programs together.