speaking of sgt. d, some have covered those crazy SOD guys... i think all of these are pretty much known.
march of the sod/sgt d and the sod... Life of Agony did a shitty cover of it for the SOD tribute that never came out... it's on their 89-99 comp. entombed did a fucking awesome cover on it. they posted it on their website a few years ago, but i dunno if it's on any of their discs.
deftones did milk also for the non-existant SOD tribute. it's pretty good, but the quality of the mp3 you find on kazaa is horrible.
i read in metal edge (an interview with scott and lilker) when bigger than the devil came out that sepultura did a live cover of douche crew on the first(?) ozzfest...
you cleveland people might know about this one... (216) which is basically a metalcore side project of 4 guys from mushroomhead have covered fuck the middle east quite a few times.
if anyone else knows of any others, post em cuz i think we'd all like to hear them.