That is one reason I wonder about OCZ. The psu's have suffixes like pro pro x exstream etc.
Strangely, they bought PC P&C which continues to make top notch psu's.
700w may be an awkward size.
A GTX690 will run on a 620w psu, assuming you will use only one card.
Newer GTX7xxx and amd 8xxx cards will not need any more either.
If, however you intend on upgrading to dual cards, 700w may not cut it, and you should be looking at something in the 750-800w range.
The OCZ 700w psu can deliver 46a on the 12v rails where the demand is.
By comparison, the 620w Seasonic psu can deliver more amps, namely 48.
That is one of the differences in quality.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
As to planning on sli, I am not for it, at least when using only a single monitor.
Here is my canned rant on that:
-----------------------------Start of rant----------------------------------------------------
Dual graphics cards vs. a good single card.
a) How good do you really need to be?
A single GTX650/ti or 7770 can give you good performance at 1920 x 1200 in most games.
A single GTX660 or 7850 will give you excellent performance at 1920 x 1200 in most games.
Even 2560 x 1600 will be good with lowered detail.
A single gtx690 is about as good as it gets.
Only if you are looking at triple monitor gaming, then sli/cf will be needed.
Even that is now changing with triple monitor support on top end cards.
b) The costs for a single card are lower.
You require a less expensive motherboard; no need for sli/cf or multiple pci-e slots.
Even a ITX motherboard will do.
Your psu costs are less.
A GTX660 needs a 430w psu, even a GTX680 only needs a 550w psu.
When you add another card to the mix, plan on adding 150-200w to your psu requirements.
Even the strongest GTX690 only needs 620w.
Case cooling becomes more of an issue with dual cards.
That means a more expensive case with more and stronger fans.
You will also look at more noise.
c) Dual cards do not always render their half of the display in sync, causing microstuttering. It is an annoying effect.
The benefit of higher benchmark fps can be offset, particularly with lower tier cards.
Read this:
http://www.tomshardware.com/reviews/radeon-geforce-stut...
d) dual card support is dependent on the driver. Not all games can benefit from dual cards.
e) cf/sli up front reduces your option to get another card for an upgrade. Not that I suggest you plan for that.
It will often be the case that replacing your current card with a newer gen card will offer a better upgrade path.
The GTX780 and amd 8000 series are not that far off.
-------------------------------End of rant-----------------------------------------------------------
Windows 7 will run on as little as a 40gb ssd.
But, some programs insist on being loaded onto the "C" drive.
I recommend at least a 120gb SSD, out of which you will have about 110gb useable.
If you get to 90% full, computer will show the space in red, and you will need to do something about it.