Hi,
Still wanted to post the result of my (similar) build from recent weeks for us as a HTPC/ media server; thanks for all the info on this forum !
AMD A6-3500
Gigabyte A75N-USB3
Samsung 64 GB SSD
Maxtor 320 GB harddisk (5 years old)
4 GB of RAM
Streacom 150W picoPSU
Works great so far, runs Gentoo and installed tvheadend and some other stuff.
Power usage at idle (HD spinned down): 29Watt
This is somewhat higher then the 19Watt mentioned by Bigsby, but this is a different mobo (slightly less efficient according to xbitlabs), and is including an extra (old) harddisk, a 150 W power brick (for a system that barely uses 60 Watt at max), and a fan still running, so I reckon power consumption might drop some more if I would change some of that.
Thanks for all the useful info !
Alex.