Heh lfalna, same thing happened to me. Got my 5 shamans about 3/4 to 71 in the first day, then right before I went to bed I decided to try a DK - loved it so much I decided to replace my main shaman with it and didn't go back to northrend again until my DK was 70. Now my shamans are 71.5 and DK is 70.66 and I'm trying to fly to 80.