Just to let everyone know that I just checked out these cases on the PacTek website, and instead of ordering the complete case you can order the individual components instead to make a dual colour case, with very little price difference. This option is probably not available through resellers, but is if ordered directly from PacTek, shipping could be more expensive since they only use FedEx:
The MI0 case from PacTek is available in two colors: Black and "PC-Bone". Initially, I ordered them all black because I wasn't sure what "PC-Bone" was.. Well, it turns out that "PC-Bone" is a pretty damn close approximation of the off-white on the XL series of machines.
So heres some pics of various case color combinations:
The half black, half white one looks pretty consistant with an XL styled device.
Unfortunately, if I build someone a white/black one, I also have to build a black/white one at some point to use up the other two case halves.. So for now, that's gonna be a "subject to availability" item, unless you REALLY want it and are willing to pay $20.00 for an extra case.