I have the Aerocool Lubic MATX. I've had this case since 2003 and I'm yet to find anything I want to replace it with. All the Lubic stuff was discontinued a long time ago and now is quite sought after. It was sold as various kits or in single items so you could add or build from scratch. It was the meccano of computer cases being as adaptable as your imagination. It's so nice to work on once it's built it too. I can slide the mother board straight out of the case by undoing a few thumb screws. The aluminium frame work is of exceptional quality.
They came like this and took a few hours at least to build with the included special gloves if you got acrylic kits:
Mine currently looks like this but has looked very different over the years:
This is how it looked in the last of the AMD single core days:
Some people really took them to the extremes:
It was cheap too IIRC I paid about £40 for my MATX case!
Cheers