I absolutely love how bad reviews can scar a company for life. The one OP linked is different. Take note of the TR2 TR.
Anyways, OP your PSU is fine. Basic but fine. As for overclocking, most people who have a 3770k (Ivybridge) don't exceed 1.4v unless they are going for extreme overclocks. I haven't used that particular MSI BIOS but are you in the advanced options? Lastly, for a 24/7 overclock, I would probably do 4.7-4.8GHz and try to get it below 1.3v.
So I should stay below 1.4V when I'm OC'ing.
Those are all the "OC" settings, it's even in a separate tab.
And what do you mean 24/7 overclock?
Would you recommend those settings? http://forum-en.msi.com/index.php?topic=159647.0