Lower power build, recommended psu

Plan to build a low power box for streaming movies and backing up my other machines in my house.

I found this nMEDIAPC HTPC 1080iP Typical 60W, Maximum 85W Mini ITX DC to ATX Integrated Power Module that seems like a great option but worry I would overload it.

link below to it.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817129006&cm_re=psu_atx-_-17-129-006-_-Product

I was hoping someone knew of another option like this but with a little bit more power. Even better would be if I could just find the converter from say 19v to atx for cheap and then I could just buy/find my own power brick. Or if some knew how to make a converter . I don't know of my exact build but have researched that I would want about a 100 watt psu/power brink.

Thank you in advance for advice.

Have you looked into a case like the Silverstone ML05 with a Seasonic SFX PSU?

I already have a case I can use. And honestly the SILVERSTONE SFX ST30SF 300W ATX12V is over powered for my needs. I did find this FSP150-REBN2 150W Mini ITX AC / DC Power Adapter, linked below. 150 watts would be plenty and I like that its rated at 88%+ efficiency. I know some ITX cases come with a converter for atx power but hoping I could just find a convertor solely.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817104184

Pico power supplies, there are less compact ones too

http://www.amazon.com/Mini-Box-pico...&qid=1404699958&sr=8-15&keywords=120+watt+psu

http://www.amazon.com/Mini-Box-picoPSU-160-XT-Power-Mini-ITX-Supply/dp/B005TWE6B8/ref=pd_cp_pc_0

http://www.amazon.com/PSU-120-120Wa...&qid=1404700160&sr=8-30&keywords=120+watt+psu

http://www.amazon.com/Mini-Box-pico...&qid=1404700198&sr=8-41&keywords=120+watt+psu

Thanks! more down the lines for what I have been looking for

been using a Pico 120WI for my mobile i3 mitx rig, just a single HD+BD drive and a low power add-in gpu.

nice! do you happen to know how many watts the system pulls?

no, i dont have one of those watt+plugs.

I ran my e8500, Intel ITX board with a tv/fm tuner card, Blue Ray burner, and a pair of 320G laptop drives on their 120 watt Pico PSU for over a year.
Adding water cooling was too much for it with an MCP 350 and 3X120's, so I had to add another small power supply, but they now make them up to 160 W. The 120 would run it all, but I was afeared cause the external bit was getting warm, and it's mini fan would kick on...

HERE is the link to the maker's site, they're a trusted vendor, used them a dozen times. The two I have are still operational, good stuff!

Thanks for the info and the link. I think 120watt is the sweet spot for me