you know, pellen, i had the same issue. so many things have musk, so it's hard to tell the notes apart, and then there is the distinction btween musk from animals vs synthetic musk (which ayala moriel describes very well on her own blog).
one thing that i found to be helpful was to order a "musk sampler" from a reputable seller on ebay (who i believe is our own buffalo_gals). there were almost 20 different musks, from the dirty ole muscs koublai khan (kinda smells like BO, except really weirdly good) to mure et musc. it was a good learning experience.
my two favorite seriously musky scentes are narciso rodriguez for her (edt) and sjp lovely. they are so sexy to me, but also very clean - some people find them too synthetic, but i love 'em.