Thats a very cool temp! What heat sink are you using? Expect them to rise like mine did by about 10 degrees.
For overclocking just set the FSB to 333Mhz (default should be 266) and it will OC to 3ghz. Play around with higher frequencies for faster speeds, but be prepared it may become unstable.
Also make sure the voltage, RAM ratios and PCI express freq settings are correct. Most mobo's have these set on auto so dont worry too much. I have the voltage set to around 1.275 (Never go above 1.5 with a Q6600) and my RAM ratios set on 1:1 and PCI express freq on 100mhz.
If anyone thinks these values should be different please say so, so far they have worked fine for me, but there may be a better or more efficient value to input
Glad I could help