Need help to choose motherboard for non gaming system

[Guest]

Hi, I am building a new pc and need help to choose a motherboard. Will not be doing gaming but mostly playing music and movies HD. No preference between AMD and Intel. Would like as many expansion slots as I can afford but picking the right MB will help not needing addin sound cards or graphics boards.

I have used Asus in past but only other name I know is MSI.

Also can you recommend a decent black simple case and what power supply?

 

[kraken501]

what is your budget?

 

[Guest]

Ideally under $400 USD. Just case, p/s, mb, memory, and cpu.