My falcon is powered with a 120w pico psu since few years and it works well! No issue with my CT63 with CTPCI+radeon video card and my ethernet hydra card. I also have a physical 2"1/2 hard disk, a card reader, an usb mouse.
Be careful to buy it with a correct power supply adapter (12v 10A). I remember all the Pico psu were sold with an underpowered adapter, i had to put the price to have something conform.
i think this should be good :http://www.ebay.fr/itm/120-W-Mini-box-p ... Sw3ydV3h0a