Minimum power need's.

[P4Clock]

I am hoping i can get away with an external PSU on my ITX system so i can have a smaller case. what would be my need's?

CPU - intel celeron G1610T 35w
Ram - 1 x 4gb stick 1600 @ 1.5v
Mobo - H61MGV3
Gpu - Gtx 610 Lowprofile passive
SSD - 128gb Kingston ssdnow V300

CPU cooler - Stock i7 4770 cooler
Case fans - 2 x Noiseblocker BlackSilent Fan X1 - 80mm (1300rpm)

 

[P4Clock]

I reckon about 100watts, you may be able to use 'Pico ATX Switch PSU Car Auto Mini ITX High Power Supply Module 12V DC 160W 24Pin' and power brick

yes that what i was hoping to get away with