Looking for a cheap-ish power supply for a needed budget build-

I am putting together a half-budget build that I want to "upgrade" when funds allow. I plan to be using an HD 7970 in the future and I like to overclock and so forth.

The infantcy stage of the build will most likely be this: http://pcpartpicker.com/user/JeremyB796/saved/4n9l A very unbalanced thing to start off, I plan to replace the mobo in the future if it causes problems, upgrade the gpu, and get a real cooler to put inside.

What I'm looking for now is an affordable PSU to pop in the thing to feed it...I am trying to get this going asap and the higher the cost, the longer it will take to fund it...I need it for college and I don't have money to burn...or a wallet...

The only thing I require from the it is:

semi modular (not very important)

80+ bronze or higher

Not be coolmax  (I already read the horrible things about that brand)

be cheap as possible (My max is $70...that's a bit pushing it)

be over 650w Need room for further upgrades as funds allow)

 

I am looking at these PSUs:

http://pcpartpicker.com/part/cougar-power-supply-cougara760 http://pcpartpicker.com/part/thermaltake-power-supply-sp750pcbus http://pcpartpicker.com/part/ocz-power-supply-oczzt650w http://pcpartpicker.com/part/evga-power-supply-120pb0750kr http://pcpartpicker.com/part/silverstone-power-supply-st70fes

The Cougar looks reasonably decent...don't know how I feel about the dual 12v rails...it would probably be something I would have to mindful of when I install a newer gpu...

I'm sorry, I'm absolutly terrible with PSUs...and GPUs if your talking about anything over 1080p...I would get a more expensive PSU if I could...like a bequite or something...but right now I'm hoping to find a cheap "gem" of the bunch or a psu that gets really good sales stupidly often (but I can't be waiting too long for a sale)

thank you for you patience.

as I joke, I'm going to list this ugly duckling here: http://pcpartpicker.com/part/coolmax-power-supply-zu700b

If I were to buy this...it would to just blow up...

You will be fine with these:

http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9

http://pcpartpicker.com/part/rosewill-power-supply-hive550

 

I was hoping for "expanding" room-

but...tis' be true that I don't need more than a 550w...

I've read a lot of good about the rosewill hive...but there other psus make me wary of it.

I would advise against getting the cheapest psu you can buy.  Cheap psu's can destroy everything in your system if something goes wrong with them.  Get the best quality psu you can within your budget, you're going to be better off in the long run spending a little extra if you can.

I meant as cheap as possible while still getting a "decent" quality unit...the thing is that I don't really have that "little extra"

I know that REALLY cheap psus should be avoided like the plague...pretty much anything that ends in "max", Xion, many others...