Best Corsair PSU for this rig?

[Th3Alchemist]

I'm considering building up the following gaming rig:

Case: Corsair Obsidian 250D
Mobo: ASUS Maximus VI Impact
CPU: Intel i5 4670K Cooler: Corsair H100i
GPU: ASUS GTX760 DC2OC 2GB GGR5
RAM: 2x Corsair Vengeance Pro Red 8GB
SSD: 1x Samsung 840 Pro Basic 256GB
HDD: WD Green 2TB 3.5"

Over at he the CM's Power Supply Calculator the recommended minimum PSU Wattage is 453W (on peak load).

Question is which of these Corsair series would be the best choice, considering that a modular PSU would be best since the build is going to be on a mITX case:
- Corsair CS550M
- Corsair CX500M
- Corsair RM550

Only future upgrade's I see in this rig may be aditional 2.5" and 3.5" storage drives. I know I've chosen an unlocked CPU but I won't overclock for now since I'm no expert at that.

Are there also PSU with shorter cables that makes cable management easier on this mITX case?

 

[PsychoGamingLemon]

I'd recommend a Silverstone strider 650w PSU, they also do a short Cable kit for M-ITX Builds like yours.

 

[Th3Alchemist]

I'd recommend a Silverstone strider 650w PSU, they also do a short Cable kit for M-ITX Builds like yours.

Isn't 650w a bit to high. What about power efficiency?

 

[PsychoGamingLemon]

I'd recommend a Silverstone strider 650w PSU, they also do a short Cable kit for M-ITX Builds like yours.

Isn't 650w a bit to high. What about power efficiency?

Good point, go for the 550w version and a short cable kit.
It'd a gold rated PSU.

 

[Th3Alchemist]

Are the short cable kits like the Silverstone PP05 compatible with other PSUs? Are the connections universal?
http://www.amazon.com/SilverStone-PP05-Short-Cable-PSU/dp/B0025VKUN4/ref=sr_1_2?ie=UTF8&qid=1400417234&sr=8-2&keywords=pp05

 

[Th3Alchemist]

Bump

 

[PsychoGamingLemon]

Are the short cable kits like the Silverstone PP05 compatible with other PSUs? Are the connections universal?
http://www.amazon.com/SilverStone-PP05-Short-Cable-PSU/dp/B0025VKUN4/ref=sr_1_2?ie=UTF8&qid=1400417234&sr=8-2&keywords=pp05

No, they're not... They only work with Silverstone Strider PSU's.
Sorry for the late reply.