I just finished my first AMV. I used one of my favourite song which is Meant to live by switchfoot! if you want to see it, either download it from animemusicvideos.org Here ( you have to be a memeber) or if you are not a member of amv.org you can dowload it here its on my own server so, please be gentle) ^^;
And quit_cauthon was nice enough to make this music sheet of "Rakuyou", a song of FMA's OST. Get it here (requires zip)
EDIT: meeh X_X sorry, link is fixed, and AMV will be fixed. just so you knnow it is about 50 MB big in Xvid codecs right now..