If I have a question about computer hardware, on which SE site should I ask it? It will involve asking for opinions.

For example,

"I need to purchase a computer for a conference room that will sit under the main conference table and be connected to a Control4 and a projector (for a monitor). The box needs to small in size. It needs an HDMI port, and should be fast. What would be a good solution?"

or something along those lines.

I like SE because there are a lot of experienced users out there who are willing to help.

So, can I ask this on any of the SE sites, or must I go elsewhere?