It's a trap!
Not that I need to explain myself here but you do make a point that is important to note.Also, I'm quite surprised by the heavy-handed moderation in this thread. It's true your PSU isn't of great quality, but TommyTwoTone66's assertion that 700W is sufficient power for mining with two cards is absolutely correct. I'd even go a step further and say it's common knowledge in the mining community, given that your cards should be configured with a reduced power limit. It's worth getting a quality PSU if you plan on mining 24/7, but 700W is a sufficient power budget.
Nobody whom had posted in this thread is disputing that 700w is plenty of power to do what the OP wants to do. More than enough even.
The issue comes into place with the following, the quality of the PSU that the OP has is VERY low, and especially with GPU prices right now, do you want to be running two expensive pieces of hardware 24x7 mining (ie when you aren't sitting in front of the computer where if/when something goes wrong you are there to stop it)? In addition the person ignoring this fact was personally attacking those who disputed him, and the OP, as well as adding fanatical theoreticals. All of which goes against the rules and spirit of this site. We want people to get good, safe, knowledgable help without abuse.
And so he is no longer posting in this thread. This is the end of discussion on this, if you have any questions on my decision feel free to privately message me.