i have pelican case for MD. however since that i had'nt play any live...
if you mostly performing just on MD (or MNM) pelican case is ok, but still very expensive (in Latvia it costs about 200 EUR if i remember correctly)
if you performing also lot of other stuff - guitars, kaos pads, handsonic, nord modulars, lemurs etc - i hope there is some other way (not so expensive) how to carry things around.
p.s.
once i hat this idea - a pelican case for my SFX 6. one what fits for SFX 6 costs more than SFX 6 and is targeted to carry weapons...