I like my current Nine hundred and have had no complaints about it.
PS: CORSAIR Professional Series HX650 (CMPSU-650HX) 650W ATX12V v2.2 / EPS12V 2.91 SLI Ready 80 PLUS BRONZE Certified Modular ... http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I have had good luck with the corsair power supplies, and the HX series is supposed to be decent. Enough power? Too much?
RAM: CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Profile Desktop Memory Model CML8GX3M2A1600C9 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
This part number is not listed on the MOBO list of approved memory, but it looks for all the world to be the exact same part they have listed except with 2x4gb chips rather than 4x4gb. The voltage and settings appear to be the same. Anyone have info on this?
Video Card: EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support FPB Video ... http://www.newegg.com/Product/Product.aspx?Item=N82E168...
The 7850's seem to have lots of reports of driver/stability problems. I like the EVGA warranty and service.
Unless you intend to overclock ur cpu, you don't need that cooler at all. In my opinion, everything looks great. I would recommend a Crucial ssd over that Intel one personally. They are very high quality and high speed and a bit cheaper. Since you already have the Antec nine hundred, I guess I won't recommend a cooler master haf 912 then. Good luck.
650w is an appropriate amount of power for your build, but at that high of a price you would be much better off with an 80 plus platinum power supply, which is somehow cheaper than the corsair model despite being significantly more efficient. I have had great luck with antec power supplies. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Switch out the GTX 560 TI for a Radeon 7850 if you can go AMD, or if you can stretch your budget, a GTX 670 if you must have Nvidia. The 560 TI is very power inefficient compared to these two cards and is not worth buying anymore because of that. The sheer savings from the reduced power usage on the 7850 versus the 560 TI are enough to pay for the cost difference in about a year or a year and a half and if that's not enough to sway you, the fact that the 7850 is faster at stock, a superior overclocker, and has more memory might.
There aren't driver problems with the 7850s right now. Most reports are from people using the wrong drivers and such (this is true for most hardware components, not just new ones and most definitely not just 7850s). I've personally used several 7850s in different builds and they are not issue prone if you don't screw something up yourself and I don't think that you will.
If price on the SSD is not important, then a Vertex 4 would be the better choice. It is very reliable (once OCZ ditched SandForce, their stability problems vanished) and for data that isn't highly compressible (IE most data and especially gaming data), the Vertex 4 with the new firmware is likely the fastest SSD available, especially at the 120/128GB capacity. The 128GB Vertex 4 has a $15 gift card that comes with it, making it cheaper than the Intel drive. Intel's SandForce drives are likely the only reliable SandForce drives, so they are still a good option, but they are a little slower, except in highly compressible synthetic benchmarks which don't show real-world performance.
Good luck, it's a nice looking build even if you don't take my advice.
The 570 would use twice as much power and has a mere 1.25GB of VRAM. That can be limiting even at low resolutions all the way down to 1080p. The 570 is a poor choice. The 7850 has pretty much unbeatable value for its market as of right now and that won't change until Nvidia releases Kepler cards in the 7800's performance range.
The 570 is only faster when it's not running out of VRAM and even then, like you said, it's only a small difference. 5% is not noticeable. The Radeon 6970 might be able to be considered another option if you don't want to recommend strictly the 7850, but the 570 is not a good idea.