IMHO, Overclocking isn't 'safe'. Especially if you don't know what you're doing. But so far, I've managed to not burn up my cpu. You have an excellent mobo and cpu for ocing from what i've read.
Creep up the fsb until you get the speed you want. There is also a multiplier you can adjust. I don't know your board, but if you set it for 10x, simply set the fsb to 300. Yours is set for 8 right now. If you don't want to mess with the multi, set the fsb to 375, and you will have 3000ghz. You probably won't need any voltage changes for that small of an oc. It's very conservative.
Watch your temperatures, especially in Arizona!! If you need to increase voltage, do so in the smallest increments your mobo allows. What are you using for cooling?
I'm also an OCing noob. I'm sure some of the more experienced folks will chime in and give you better advise.