So, from what I can tell from the technical jibberjabber, I can use HDMI if I put a xeon with integrated graphics on the board..?
For the specific board you were looking at you need a processor with integrated graphics. Read the CPU section. If you are thinking Xeon you need to go with the series ending in "5".
The X10SL7 has a on board controller but you can connect 8 SATA drives to it. You might need to flush it and there is a separate thread how to do it.And those SAS ports are for server drives which are smaller in storage and much more expensive, aren't they? Plus they spin at a lot higher RPM, so make make a lot more noise. remember, this thing has to be in my living room next to the tv :)
Thanks for the feedback.