Need help with MITX build.

[Inb4uall]

I have several problems/questions about the current build I am going for.

Here is the link to the PC part picker that I am using. 

http://pcpartpicker.com/p/vJqgqs

 

So all of the GTX 970's say they require minimum 500W PSU's but PC part picker estimates that the build will only require 312W and doesn't flag the silverstone 450 W PSU that I have picked. So I am completely confuse there.

 

Additionally the liquid cooler got flagged because PC part picker says that it can't confirm that the case will support it. In his unboxing of the FT03 mini linus suggests throwing a Corsair H60 in the case. What do you guys recommend? I want to be sure whatever I order will work. 

 

Then there is the matter of the GPU. I want to put a 970 in this build. I was originally going to go for the EVGA's blower version of the 970 but in this thread: http://linustechtips.com/main/topic/218729-gtx-970-blower-coolers-evga-pny/ everyone says that apparently EVGA's non reference blowers are noisy and do a poor job of actually cooling the GPU properly. The thread ends with the conclusion that the PNY 970 is the way to go. Is PNY really the way to go? I would get a GTX 970 reference cooler but it's 10.5 inches and wouldn't fit in the FT03. 

 

Finally the EVGA stinger is the motherboard that I decided to go with. Is there a better one? 

Really all I want is a MITX board that isn't going to bottleneck the CPU or GPU. Picked this one because the ASUS ROG impact is top of the line for MITX and this was it's main competitor for about a $100 less. Is there a better option? Also the board got flagged for possibly needing a BIOS update to work with the CPU I picked. So I would have to update the bios to get the system to boot at all or what? How complicated is that? If there is better board for what I'm trying to do suggestions would be appreciated. 

 

Any and all help is appreciated. 

[EzioSan]

I see you picked a i5 4690k and a z motherboard..so you are gonna overclock. i guess you will do the same with both 970´s..so maybe the right thing to do would be to pick atleast a 600w psu..imo

 

edit: sorry i missread you picked only 1 gpu. a good 450/500w psu from seagate / be quite and your fine.I got a 450w from be quite with an i5 4460 and the msi gtx 970 an i´m totally fine.

[Inb4uall]

The PSU has to be SFX to be compatible with the case. If I need to I can bump the PSU up to a 600W silverstone PSU but the only other brands are sea sonic and Sparkle. Neither of which are rated for 80+ gold. Silverstone brand is really the best I can do.