Re: Ugly HTPC cases
I use an Antec ISK 600:
It's hard to find a pic showing how small these things are. They are about the same dimensions as an Xbox One in terms of length and width, and maybe about twice as tall. They fit a normal full size video card, and a full size PSU. It uses an MITX mobo, and basically it's as long and wide as the MITX mobo and PSU side by side, and as tall as your video card.
It fits easily in my entertainment center under my TV. Nothing garish or weird about it.
They're also pretty cheap, like usually $50 or lower.