Review this PC gaming build

[RaidZero]

Case: NZXT Phantom ATX Full Tower
Motherboard: Asus P8P67 LE Rev 3.0 LGA 1155 SATA 6Gb/s
GPU: EVGA DS SuperClocked GeForce GTX 560 Ti 1GB
PSU: NZXT Hale90 750W
CPU: i7-2600K Sandy Bridge 3.4GHz
SSD: Kingston SSDNow V+100 96GB
Hard Drive: Samsung Spinpoint 1TB 7200 RPM SATA 3.0Gb/s
CPU Cooling: Hyper 212+
Case Fans: NZXT FN-140RB & NZXT FN-200RB
Memory: G.SKILL Ripjaws X Series 4GB (2 x 2GB) DDR3 1600

I plan on buying this the last week of June and then putting it all together then.
I do not plan on overclocking anything myself, unless it came overclocked.
But I do have some concerns after reading some reviews.


Things to do:
Figure out how to install a SSD
Figure out how to install Windows 7 from a CD
Figure out how to setup fans for best airflow
Take the Optical Drive from this computer and put it into the new one



Questions:
Should I buy better thermal compound? Any suggestions?
Difference between DDR3 1066 and 1600? Should I upgrade to 8GB?
Is 750W enough for my system now? Is it enough if I wanted to have two GTX 560s?
Do NZXT cases only support NZXT case fans? I've read that NZXT fans aren't all that great, should I get some other fans?
Any suggestions or feedback?

 

[Mictlantecuhtli]

I do not plan on overclocking anything myself, unless it came overclocked.

Then why buy a overclocker's CPU? The 'K' versions of i7s are multiplier unlocked, meant for overclocking. Of course if price is the same as normal 2600 then by all means go for it

Figure out how to install a SSD

The same way you install any hdd.

Figure out how to install Windows 7 from a CD

It's a DVD and you set the PC to boot from it.

Should I buy better thermal compound? Any suggestions?

It doesn't make any difference as you're not overclocking.

Difference between DDR3 1066 and 1600?

You won't see any. A few percentage in most applications.

Should I upgrade to 8GB?

The more the better if you ask me
Just make sure you install 64-bit OS.

Is 750W enough for my system now? Is it enough if I wanted to have two GTX 560s?

It should be enough for both.

Do NZXT cases only support NZXT case fans? I've read that NZXT fans aren't all that great, should I get some other fans?

As long as the fan holes are standard 80/120/something mm, you shouldn't have any problems with other fans. I don't know about NZXT fan quality.