Besides spending money, I also did some woodworking. I cut all 4 back panels, and 2 top panels. All of these panels, including the bottom panel, and monitor mount were screw/glued to the sides. I just put the entire thing on its wheels and it feels rock solid! For those wondering why I have 4 panels in the back; from bottom to top:
1- the lower panel is fixed in place and provides the ethernet and power connections, as I did not want these connectors on a removable panel. Notice that this panel is not rectangular in shape. This is so the panel does not sit in the way of the subwoofer.
2- removable panel that gives access to the lower part of the cabinet, containing the coindoor/mech/bucket, sub, and power strip. It has a window for the sub. The panel is fixed using 4 M6 insertnuts and 4 M6 bolts.
3- small fixed panel that sits directly behind the pc. It has a window to provide fresh air to the pc, and two buttons. The buttons are to power-up the pc, and maybe to enable/disable a SLG 300 scanline generator.
4- large removable panel that provides access to the upper part of the cabinet, containing the pc, monitor, speakers. The panel is fixed using 4 M6 insertnuts and 4 M6 bolts. Well actually 3 at the moment, because I accidentally bought a M10 insertnut, grrr.
One of the top panels also has a hole to allow warm air to exit the cabinet. All holes were routed with a 45 degree chamfer bit, and will be covered by a (black) aluminium mesh and possibly speaker cloth.
Sorry for the lousy ipod photos, but my DSLR died, and I'm spending too much money on my cab to be able to get it fixed/replaced