I wouldn't recommend OCing if you don't have an aftermarket cooler installed. Stock intel fans aren't worth a whole lot.
I would also recommend that you just boot up your BIOS instead of using that software, never had much trust for them... Or maybe I'm just old fashioned.
Some different guides I've found for you, overclocking really isn't that hard once you get used to it... But I can't blame you for being cautious the first time around. Do heed Goku's advice though.
http://www.overclock.net/t/910467/th...ormance-review
http://www.overclock.net/t/1100100/i...rclocking-tips
http://www.overclock.net/t/1198504/c...asrock-edition
The 212+ is a great cooler, when compared to its size and weight. I have one myself.