No SFF case takes a full ATX mobo (as in your system list) anyway. All shoebox style SFF cases use proprietary mobos and PSUs (and sometimes other stuff like HSFs). The next best case that's somewhere in the ballpark is the Chenming 118 or the Aspire X-Qpack (based on the 118), but they take microATX mobos. You just aren't going to find a really compact case that will take a full ATX mobo. Sorry, Charlie...
. The Aspire X-Sonic is nearly identical to the original Antec LanBoy and is relatively compact and light for a full ATX box. It can use the same accessories as the LanBoy. There are a couple of cases for ATX that are smaller, but they make compromises that may not be acceptable (PSU encroaches on HSF space, etc.)
.bh.