Show "broken" files

ok, well for whatever reason itunes likes to lose the location of some of my music every so often and thus puts the dreaded "!" of doom next to the track. this wouldnt be that big of a deal if i didnt have a library bordering on 60 GB. i simply cant go through my entire library searching for all my lost files to fix. nor do i want to delete my library and re import it. last time i did that it took close to 12 hours. so heres my question, is there any way to organize my tracks by their current state (ie broken or not broken). and what would be the best solution to fix all my tracks. is there a way to group fix em, or am i doomed to individually fixing each and every one.