Just did a LONG search and read about a few SFF cases out there...
Monarch Hornet - probably would be closest to Fragbox (in terms of looks and performance), but they don't have a lot of socket choices.
Xoxide UFO - not quite a SFF (18" by 18") but it's nice and light, looks nice, insane cooling (6x 120mm fans, 4x 80mm fans) but costs a fortune, at about 320 bucks.
Various Shuttle cases - nice, but aren't awe-inspiring and they also don't have a lot of socket choices (only one 939 case).
Oh well. Good way to kill some time. Damn Fragbox has to make their low-end systems cost 2k bucks.