Go with this motherboard:http://www.newegg.com/Product/Product.aspx?Item=N82E16813131406&cm_re=m4a785-_-13-131-406-_-Product
Also, if you intend to game at all, I recommend either a 4670 or better yet a 5670, both still low-power. Unless you play really old games (6+ years old), or really don't want to spare the extra cost.
If you don't game, there is no point in getting a graphics card since the integrated graphics will be more than enough. HD movies are fine with the integrated.
That said, there are some other things that are GPU accelerated. If you are getting the GPU because you use one of those things, and know the 4650 is good, then go for it.
All that is a bit off topic though. To answer your question, yes, your PSU is enough to power those components.