I have an affinity for DELL mobos. As you know they are proprietary and unique. I believe they are referred to as BTX form factor. Are there any third party cases, cheap price, that will accomodate these boards? I use the board from a optiplex gx400, 4H665 board number. The issue is with a standard ATX case is that the interior is usually not large enough. And the card support is in the way as well as other structures. I end up removing the entire rear panel, card securing structure in order to mount the board. I also need to move the board past the rear edge and add an additional face frame to accomodate the board. I would like to find a third party design of the optiplex gx 400 or the dimension 8100 case. The board mounting is not the issue. The interior is as is the internal structures. Any help welcome.