AMDeamon,

Sorry to hear about your crash. Hope it didn't damage too much. As for the shake while idling up, first thing to check after you replace the blades is: Are the blades properly aligned and balanced? Just because you have a new set doesn't mean that they are ready for use. If the blades are good, then check the shaft that goes between the blade grips. I know that after a very bad crash, I found that I bent the connecting shaft between the blade grips. So check that out. You also my want to check the main shaft, that could also have gotten bent.

Hope this helps. Keep us informed and good luck. Hope you get flying again soon.