My next PC build will be SFF, too. I've currently got a small-ish desktop, but want more space on my actual desk, and don't want to move it off because I'd have to deal with variable cable lengths(sit-stand desk).

Going down to mini-ITX motherboard size means I'm going to probably be low on ports and expansion options, so having a dock will be an important part of the setup, and will also help reduce cable clutter/cable shuffling.

One other thing I might look into is an audio switcher. I don't have an 'audio stack', but usually can't stand the electric whine on most basic onboard audio. If I can keep my headphones on, and just flip a switch to change the channel they receive from, I'd be thrilled.