so i have the sandybridge 2500k in my computer and will be overclocking. I need some guidelines that I should follow (like max temps., voltage, and an appropriate and safe clock speed for running fsx at very high settings)Also what should I use to monitor these temps, voltage, etc.

This should get you started.http://www.clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html